There are a total of 52 cards and 4 of these cards are aces. So if we are to find the probability of not getting any of the ace card, it is just like saying find the probability of getting any card except ace. There are 48 of these then 47 on the second draw, therefore the probability of not getting any ace card P (x=0) is:
P (x=0) = (48/52) * (47/51) = 0.8507 = 85.07%