21278 ÷ 5 = 4255 R3
Sure thing! Let's divide 21278 by 5 together.

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 (2) of the dividend behind the 1 and repeat the process: 12 / 5

Step 3:
5 goes into 12 2 times with a remainder of 2.
Write down 2 as next digit of of the result. 
Result so far: 42
Subtract 10 from 12 to get 2.
Bring next digit (7) of the dividend behind the 2 and repeat the process: 27 / 5

Step 4:
5 goes into 27 5 times with a remainder of 2.
Write down 5 as next digit of of the result. 
Result so far: 425
Subtract 25 from 27 to get 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 5

Step 5:
5 goes into 28 5 times with a remainder of 3.
Write down 5 as next digit of of the result. 
Result so far: 4255
Subtract 25 from 28 to get 3.

The final result is 4255 with a remainder of 3.