20064 ÷ 5 = 4012 R4
Let's divide 20064 by 5.

Step 1:
5 goes into 2 0 times with a remainder of 2.
Write down 0 as next digit of of the result. 
Result so far: 0
Subtract 0 from 2 to get 2.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 5

Step 2:
5 goes into 20 4 times with a remainder of 0.
Write down 4 as next digit of of the result. 
Result so far: 4
Subtract 20 from 20 to get 0.
Bring next digit (0) of the dividend behind the 0 and repeat the process: 0 / 5

Step 3:
5 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of of the result. 
Result so far: 40
Subtract 0 from 0 to get 0.
Bring next digit (6) of the dividend behind the 0 and repeat the process: 6 / 5

Step 4:
5 goes into 6 1 times with a remainder of 1.
Write down 1 as next digit of of the result. 
Result so far: 401
Subtract 5 from 6 to get 1.
Bring next digit (4) of the dividend behind the 1 and repeat the process: 14 / 5

Step 5:
5 goes into 14 2 times with a remainder of 4.
Write down 2 as next digit of of the result. 
Result so far: 4012
Subtract 10 from 14 to get 4.

The final result is 4012 with a remainder of 4.