[RyDeR`]

Alright.

Here's a better example (this will make you understand it better):
(10 % 5)

Code:

 10  |_5___
-10  | 2
___  |
 0   |

Do you still remember this from the very beginning of school?

Let's say that example in words:
How many times can 5 join 10? 2 times. So 2.5 = 10 ; (also we write this (2) on the right side under the divider). Then you need to substract it so 10 -10 = 0. The remainder is 0.

Here's another example:
(4 % 3)

Code:

 4  |_3___
-3  | 1
___ |
 1  |

In words:
How many times can 3 join 4? 1 time. So 1.3 = 3 ; (don't forgot to write this (1) on the right side under the divider). Then you need to substract from it so 4 - 3 = 1. The remainder is 1.