The word(s) "prostrate" appears 52 time(s) in 44 verse(s) in Quran in Mohsin Khan translation.

(31) Only those believe in Our Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.), who, when they are reminded of them, fall down prostrate, and glorify the Praises of their Lord, and they are not proud.

(32) Then, when they had both submitted themselves (to the Will of Allah), and he had laid him prostrate on his forehead (or on the side of his forehead for slaughtering);

(33) [Dawud (David)] said (immediately without listening to the opponent): "He has wronged you in demanding your ewe in addition to his ewes. And, verily, many partners oppress one another, except those who believe and do righteous good deeds, and they are few." And Dawud (David) guessed that We have tried him and he sought Forgiveness of his Lord, and he fell down prostrate and turned (to Allah) in repentance.

(34) So when I have fashioned him and breathed into him (his) soul created by Me, then you fall down prostrate to him."

(35) So the angels prostrated themselves, all of them:

(36) (Allah) said: "O Iblis (Satan)! What prevents you from prostrating yourself to one whom I have created with Both My Hands . Are you too proud (to fall prostrate to Adam) or are you one of the high exalted?"

(37) And from among His Signs are the night and the day, and the sun and the moon. prostrate yourselves not to the sun nor to the moon, but prostrate yourselves to Allah Who created them, if you (really) worship Him.

(38) Muhammad (صلى الله عليه وسلم) is the Messenger of Allah. And those who are with him are severe against disbelievers, and merciful among themselves. You see them bowing and falling down prostrate (in prayer), seeking Bounty from Allah and (His) Good Pleasure. The mark of them (i.e. of their Faith) is on their faces (foreheads) from the traces of prostration (during prayers). This is their description in the Taurat (Torah). But their description in the Injeel (Gospel) is like a (sown) seed which sends forth its shoot, then makes it strong, and becomes thick and it stands straight on its stem, delighting the sowers, that He may enrage the disbelievers with them. Allah has promised those among them who believe (i.e. all those who follow Islamic Monotheism, the religion of Prophet Muhammad صلى الله عليه وسلم till the Day of Resurrection) and do righteous good deeds, forgiveness and a mighty reward (i.e. Paradise).

(39) And the herbs (or stars) and the trees both prostrate themselves (to Allah - See V.22:18) (Tafsir Ibn Kathir)

(40) (Remember) the Day when the Shin shall be laid bare (i.e. the Day of Resurrection) and they shall be called to prostrate themselves (to Allah), but they (hypocrites) shall not be able to do so.