well I know that in poker you have a 1 in 4000 chance of getting a four of a kind. However, I don't know about reaching into a pile of cards. wouldn't the first time you have 4 in 52 chance, 2nd time 3 in 51 chance, 3rd time 2 in 50, and lastly 1 in 49. then you would have a 24 in 6497400 chance...