I don’t know where you got the idea that reciting sura al-Baqarah is a common part of salah.
Reciting a sura from the Quran is part of salah, but usually the reciter will choose one of the short suras from near the back of the Quran (known as the quls).
Sura al-Baqarah is the longest sura in the Quran, being 286 verses long, and it is quite rare to recite it during the five-times daily salah, because no one has time for that, and not many people know it by heart.