Math

Great question! But I'm pretty lazy so I'm just gonna paste the site that explains how to divide a number 

http://www.basic-mathematics.com/dividing-whole-numbers.html

But seriously tho, could you not of just searched it up on google? (No Offence)

Oh, and here is how to use google in case you don't know how to: http://searchengineland.com/guide/how-to-use-google-to-search 

JK