The [product of 4 and 100, that is;
4 x 100 = 400
Its pretty much staright forward. When multiplying a number by another with zeros after it, the zeros dont carry any value but simply remain at the back, while the othernumbers with a value stays at the front of the digits (when writing out your answer). Since the number of zeros is just two, the answer then becomes 4 times 1, and you add two zeros after your answer.
Therefore, the produ