Let's divide 868647 by 90
We're looking to find how many times 90 goes into 868647.

Advancing to step 1:
If we divide 8 by 90, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 90

Going ahead to step 2:
86 divided by 90 is 0 with a remainder of 86.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 86 after subtracting 0 from 86.
Take the next digit (8) from the dividend and append it to 86, then repeat: 868 / 90

Advancing to step 3:
868 divided by 90 is 9 with a remainder of 58.
Use 9 as the next digit of our solution. 
Result so far: 9.0
If we take 810 away from 868, we end up with 58.
Take the next digit (6) from the dividend and append it to 58, then repeat: 586 / 90

Let's proceed to step 4:
When dividing 586 by 90, we get 6 with a remainder of 46.
Put 6 as the next digit of the answer. 
Result so far: 96.0
If we subtract 540 from 586, we get 46.
Append the next digit (4) from the dividend to 46 and continue with: 464 / 90

Advancing to step 5:
90 can be fit into 464 5 times, resulting in a remainder of 14.
Write down 5 as next digit of the result. 
Result so far: 965.0
If we take 450 away from 464, we end up with 14.
Bring next digit (7) of the dividend behind the 14 and repeat the process: 147 / 90

On to step 6:
The number 90 fits into 147 1 times, leaving a remainder of 57.
Write down 1 as next digit of the result. 
Result so far: 9651.0
If we take 90 away from 147, we end up with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Advancing to step 7:
When dividing 570 by 90, we get 6 with a remainder of 30.
Put 6 as the next digit of the answer. 
Result so far: 9651.6
If we subtract 540 from 570, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 8:
The number 90 fits into 300 3 times, leaving a remainder of 30.
Put 3 as the next digit of the answer. 
Result so far: 9651.63
The remainder is 30 after subtracting 270 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 9:
90 goes into 300 3 times with a remainder of 30.
Put 3 as the next digit of the answer. 
Result so far: 9651.633
Deduct 270 from 300 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Our division results in 9651.633 with a remaining 0.003.