866728 ÷ 9 
We're looking to find how many times 9 goes into 866728.

Let's proceed to step 1:
8 divided by 9 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 9

Advancing to step 2:
The number 9 fits into 86 9 times, leaving a remainder of 5.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Subtract 81 from 86 to get 5.
Append the next digit (6) from the dividend to 5 and continue with: 56 / 9

Going ahead to step 3:
If we divide 56 by 9, we get 6 and a remainder of 2.
Use 6 as the next digit of our solution. 
Result so far: 96.0
Subtract 54 from 56 to get 2.
Take the next digit (7) from the dividend and append it to 2, then repeat: 27 / 9

On to step 4:
9 goes into 27 3 times with a remainder of 0.
The next digit of our result is 3. 
Result so far: 963.0
The remainder is 0 after subtracting 27 from 27.
Include the next digit (2) from the dividend after 0, then repeat: 2 / 9

Going ahead to step 5:
If we divide 2 by 9, we get 0 and a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 9630.0
If we take 0 away from 2, we end up with 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 9

Going ahead to step 6:
9 can be fit into 28 3 times, resulting in a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 96303.0
If we take 27 away from 28, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 7:
If we divide 10 by 9, we get 1 and a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 96303.1
Deduct 9 from 10 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 8:
9 can be fit into 10 1 times, resulting in a remainder of 1.
The next digit of our result is 1. 
Result so far: 96303.11
Subtracting 9 from 10 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

After the division, we end up with 96303.11 and a remainder of 0.001.