Hey aaaa202 and welcome to the forums.
The binomial distribution represents n independent events happening with each true event having a p probability of occurring.
In other words Bin(n,p) gives the probability distribution for having x events become true for x = 0 to x = n.
Because of the independence of each event, you can use the product identity P(A and B) = P(A)P(B) to generate the mathematical formula for getting a specific probability.