Different Types of Division
Regular division is simply dividing. Keep the whole number and decimal. It is the one that you grew up with your whole life.
Integer division is a little different. You still divide, but only keep the whole number and not the decimal or fraction, if there is any left over. Represented by \ in an equation. An example would be "72 \ 7 = 10" the extra 2 is not kept because it is integer division.
Modular division is basically the opposite of integer division. You divide, and then only keep what is left over. If the result is a whole number, than the answer would be zero. Represented by "Mod" in an equation. An example would be " 33 mod 4 = 1" because 4 *8 is 32, and there is one left over, so that would be the answer.