Division is splitting into equal parts or groups. It is the result of "fair sharing".

Example: there are 12 chocolates, and 3 friends want to share them, how do they divide the chocolates?

Answer: They should get 4 each.

We use the ÷ symbol, or sometimes the / symbol to mean divide:

12 ÷ 3 = 4

12 / 3 = 4

See division in action here. Notice that there is often an amount left over called the "remainder":