77798 ÷ 8 = 9724 R6
Let's divide 77798 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 (7) of the dividend behind the 7 and repeat the process: 77 / 8

Step 2:
8 goes into 77 9 times with a remainder of 5.
Write down 9 as next digit of of the result. 
Result so far: 9
Subtract 72 from 77 to get 5.
Bring next digit (7) of the dividend behind the 5 and repeat the process: 57 / 8

Step 3:
8 goes into 57 7 times with a remainder of 1.
Write down 7 as next digit of of the result. 
Result so far: 97
Subtract 56 from 57 to get 1.
Bring next digit (9) of the dividend behind the 1 and repeat the process: 19 / 8

Step 4:
8 goes into 19 2 times with a remainder of 3.
Write down 2 as next digit of of the result. 
Result so far: 972
Subtract 16 from 19 to get 3.
Bring next digit (8) of the dividend behind the 3 and repeat the process: 38 / 8

Step 5:
8 goes into 38 4 times with a remainder of 6.
Write down 4 as next digit of of the result. 
Result so far: 9724
Subtract 32 from 38 to get 6.

The final result is 9724 with a remainder of 6.