12856 ÷ 5 = 2571 R1
Let's divide 12856 by 5.

Step 1:
5 goes into 1 0 times with a remainder of 1.
Write down 0 as next digit of of the result. 
Result so far: 0
Subtract 0 from 1 to get 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 5

Step 2:
5 goes into 12 2 times with a remainder of 2.
Write down 2 as next digit of of the result. 
Result so far: 2
Subtract 10 from 12 to get 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 5

Step 3:
5 goes into 28 5 times with a remainder of 3.
Write down 5 as next digit of of the result. 
Result so far: 25
Subtract 25 from 28 to get 3.
Bring next digit (5) of the dividend behind the 3 and repeat the process: 35 / 5

Step 4:
5 goes into 35 7 times with a remainder of 0.
Write down 7 as next digit of of the result. 
Result so far: 257
Subtract 35 from 35 to get 0.
Bring next digit (6) of the dividend behind the 0 and repeat the process: 6 / 5

Step 5:
5 goes into 6 1 times with a remainder of 1.
Write down 1 as next digit of of the result. 
Result so far: 2571
Subtract 5 from 6 to get 1.

The final result is 2571 with a remainder of 1.