I want to learn surah Rahman and recite it while I pray. but I do not know how to break down the surah and pray.please help and advise what is the procedure to read long surah in prayer Jazakallah
Good to know that you are planning to Hifz Surah Rehman and recite in namaz. One can recite as many ayats in a rakah as desired or memorized. Better to recite at least 3 short ayats in a rakah, or 1 long ayat (eg ayatul Kursi). You can recite any number of ayats. Or you can recite 1 ruku in each rakat. Hope this clarifies.