The word(s) "how" appears 302 time(s) in 274 verse(s) in Quran in Muhammad Pickthal translation.

(51) how should we not believe in Allah and that which hath come unto us of the Truth. And (how should we not) hope that our Lord will bring us in along with righteous folk?

(52) When Allah saith: O Jesus, son of Mary! Remember My favour unto thee and unto thy mother; how I strengthened thee with the holy Spirit, so that thou spakest unto mankind in the cradle as in maturity; and how I taught thee the Scripture and Wisdom and the Torah and the Gospel; and how thou didst shape of clay as it were the likeness of a bird by My permission, and didst blow upon it and it was a bird by My permission, and thou didst heal him who was born blind and the leper by My permission; and how thou didst raise the dead by My permission; and how I restrained the Children of Israel from (harming) thee when thou camest unto them with clear proofs, and those of them who disbelieved exclaimed: This is naught else than mere magic;

(53) See they not how many a generation We destroyed before them, whom We had established in the earth more firmly than We have established you, and We shed on them abundant showers from the sky, and made the rivers flow beneath them. Yet we destroyed them for their sins, and created after them another generation.

(54) See how they lie against themselves, and (how) the thing which they devised hath failed them!

(55) We know well how their talk grieveth thee, though in truth they deny not thee (Muhammad) but evil-doers flout the revelations of Allah.

(56) Say: Have ye imagined, if Allah should take away your hearing and your sight and seal your hearts, Who is the Allah Who could restore it to you save Allah? See how We display the revelations unto them! Yet still they turn away.

(57) Say: He is able to send punishment upon you from above you or from beneath your feet, or to bewilder you with dissension and make you taste the tyranny one of another. See how We display the revelations so that they may understand.

(58) Thus did We show Abraham the kingdom of the heavens and the earth that he might be of those possessing certainty:

(59) how should I fear that which ye set up beside Him, when ye fear not to set up beside Allah that for which He hath revealed unto you no warrant? Which of the two factions hath more right to safety? (Answer me that) if ye have knowledge.

(60) And they measure not the power of Allah its true measure when they say: Allah hath naught revealed unto a human being. Say (unto the Jews who speak thus): Who revealed the Book which Moses brought, a light and guidance for mankind, which ye have put on parchments which ye show, but ye hide much (thereof), and (by which) ye were taught that which ye knew not yourselves nor (did) your fathers (know it)? Say: Allah. Then leave them to their play of cavilling.