28664 ÷ 9 = 3184 R8
Alright, let's work through the division of 28664 by 9 step by step.

Step 1:
9 goes into 2 0 times with a remainder of 2.
Write down 0 as next digit of of the result. 
Result so far: 0
Subtract 0 from 2 to get 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 9

Step 2:
9 goes into 28 3 times with a remainder of 1.
Write down 3 as next digit of of the result. 
Result so far: 3
Subtract 27 from 28 to get 1.
Bring next digit (6) of the dividend behind the 1 and repeat the process: 16 / 9

Step 3:
9 goes into 16 1 times with a remainder of 7.
Write down 1 as next digit of of the result. 
Result so far: 31
Subtract 9 from 16 to get 7.
Bring next digit (6) of the dividend behind the 7 and repeat the process: 76 / 9

Step 4:
9 goes into 76 8 times with a remainder of 4.
Write down 8 as next digit of of the result. 
Result so far: 318
Subtract 72 from 76 to get 4.
Bring next digit (4) of the dividend behind the 4 and repeat the process: 44 / 9

Step 5:
9 goes into 44 4 times with a remainder of 8.
Write down 4 as next digit of of the result. 
Result so far: 3184
Subtract 36 from 44 to get 8.

The final result is 3184 with a remainder of 8.