77766 ÷ 9 = 8640 R6
Sure thing! Let's divide 77766 by 9 together.

Step 1:
9 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 / 9

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

Step 3:
9 goes into 57 6 times with a remainder of 3.
Write down 6 as next digit of of the result. 
Result so far: 86
Subtract 54 from 57 to get 3.
Bring next digit (6) of the dividend behind the 3 and repeat the process: 36 / 9

Step 4:
9 goes into 36 4 times with a remainder of 0.
Write down 4 as next digit of of the result. 
Result so far: 864
Subtract 36 from 36 to get 0.
Bring next digit (6) of the dividend behind the 0 and repeat the process: 6 / 9

Step 5:
9 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of of the result. 
Result so far: 8640
Subtract 0 from 6 to get 6.

The final result is 8640 with a remainder of 6.