15854 ÷ 8 = 1981 R6
We're going to perform division on 15854 with 8 as the divisor.

Step 1:
8 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 (5) of the dividend behind the 1 and repeat the process: 15 / 8

Step 2:
8 goes into 15 1 times with a remainder of 7.
Write down 1 as next digit of of the result. 
Result so far: 1
Subtract 8 from 15 to get 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 8

Step 3:
8 goes into 78 9 times with a remainder of 6.
Write down 9 as next digit of of the result. 
Result so far: 19
Subtract 72 from 78 to get 6.
Bring next digit (5) of the dividend behind the 6 and repeat the process: 65 / 8

Step 4:
8 goes into 65 8 times with a remainder of 1.
Write down 8 as next digit of of the result. 
Result so far: 198
Subtract 64 from 65 to get 1.
Bring next digit (4) of the dividend behind the 1 and repeat the process: 14 / 8

Step 5:
8 goes into 14 1 times with a remainder of 6.
Write down 1 as next digit of of the result. 
Result so far: 1981
Subtract 8 from 14 to get 6.

The final result is 1981 with a remainder of 6.