21925 ÷ 5 = 4385 R0
Let's divide 21925 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 (1) of the dividend behind the 2 and repeat the process: 21 / 5

Step 2:
5 goes into 21 4 times with a remainder of 1.
Write down 4 as next digit of of the result. 
Result so far: 4
Subtract 20 from 21 to get 1.
Bring next digit (9) of the dividend behind the 1 and repeat the process: 19 / 5

Step 3:
5 goes into 19 3 times with a remainder of 4.
Write down 3 as next digit of of the result. 
Result so far: 43
Subtract 15 from 19 to get 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 5

Step 4:
5 goes into 42 8 times with a remainder of 2.
Write down 8 as next digit of of the result. 
Result so far: 438
Subtract 40 from 42 to get 2.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 5

Step 5:
5 goes into 25 5 times with a remainder of 0.
Write down 5 as next digit of of the result. 
Result so far: 4385
Subtract 25 from 25 to get 0.

The final result is 4385 with a remainder of 0.