13436 ÷ 8 = 1679 R4
Let's divide 13436 by 8.

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 (3) of the dividend behind the 1 and repeat the process: 13 / 8

Step 2:
8 goes into 13 1 times with a remainder of 5.
Write down 1 as next digit of of the result. 
Result so far: 1
Subtract 8 from 13 to get 5.
Bring next digit (4) of the dividend behind the 5 and repeat the process: 54 / 8

Step 3:
8 goes into 54 6 times with a remainder of 6.
Write down 6 as next digit of of the result. 
Result so far: 16
Subtract 48 from 54 to get 6.
Bring next digit (3) of the dividend behind the 6 and repeat the process: 63 / 8

Step 4:
8 goes into 63 7 times with a remainder of 7.
Write down 7 as next digit of of the result. 
Result so far: 167
Subtract 56 from 63 to get 7.
Bring next digit (6) of the dividend behind the 7 and repeat the process: 76 / 8

Step 5:
8 goes into 76 9 times with a remainder of 4.
Write down 9 as next digit of of the result. 
Result so far: 1679
Subtract 72 from 76 to get 4.

The final result is 1679 with a remainder of 4.