78164 ÷ 8 = 9770 R4
Let's divide 78164 by 8.

Step 1:
8 goes into 7 0 times with a remainder of 7.
Write down 0 as next digit of of the result. 
Result so far: 0
Subtract 0 from 7 to get 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 8

Step 2:
8 goes into 78 9 times with a remainder of 6.
Write down 9 as next digit of of the result. 
Result so far: 9
Subtract 72 from 78 to get 6.
Bring next digit (1) of the dividend behind the 6 and repeat the process: 61 / 8

Step 3:
8 goes into 61 7 times with a remainder of 5.
Write down 7 as next digit of of the result. 
Result so far: 97
Subtract 56 from 61 to get 5.
Bring next digit (6) of the dividend behind the 5 and repeat the process: 56 / 8

Step 4:
8 goes into 56 7 times with a remainder of 0.
Write down 7 as next digit of of the result. 
Result so far: 977
Subtract 56 from 56 to get 0.
Bring next digit (4) of the dividend behind the 0 and repeat the process: 4 / 8

Step 5:
8 goes into 4 0 times with a remainder of 4.
Write down 0 as next digit of of the result. 
Result so far: 9770
Subtract 0 from 4 to get 4.

The final result is 9770 with a remainder of 4.