Let's divide 980866 by 90
We're looking to find how many times 90 goes into 980866.

Moving on to step 1:
90 goes into 9 0 times with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Fetch the next digit (8) from the dividend, attach it to 9 and continue: 98 / 90

Let's proceed to step 2:
The number 90 fits into 98 1 times, leaving a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 90 from 98 leaves us with 8.
Include the next digit (0) from the dividend after 8, then repeat: 80 / 90

Moving on to step 3:
80 divided by 90 is 0 with a remainder of 80.
The next digit of our result is 0. 
Result so far: 10.0
Subtracting 0 from 80 leaves us with 80.
Take the next digit (8) from the dividend and append it to 80, then repeat: 808 / 90

Going ahead to step 4:
The number 90 fits into 808 8 times, leaving a remainder of 88.
Record the quotient 8 as the next digit in the result. 
Result so far: 108.0
If we subtract 720 from 808, we get 88.
Append the next digit (6) from the dividend to 88 and continue with: 886 / 90

Advancing to step 5:
When dividing 886 by 90, we get 9 with a remainder of 76.
Put 9 as the next digit of the answer. 
Result so far: 1089.0
Subtract 810 from 886 to get 76.
Fetch the next digit (6) from the dividend, attach it to 76 and continue: 766 / 90

Let's proceed to step 6:
766 divided by 90 is 8 with a remainder of 46.
The next digit of our result is 8. 
Result so far: 10898.0
Subtract 720 from 766 to get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Step 7:
When dividing 460 by 90, we get 5 with a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 10898.5
If we subtract 450 from 460, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 8:
100 divided by 90 is 1 with a remainder of 10.
The number 1 becomes the next digit in our result. 
Result so far: 10898.51
Deduct 90 from 100 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 9:
100 divided by 90 is 1 with a remainder of 10.
Use 1 as the next digit of our solution. 
Result so far: 10898.511
If we take 90 away from 100, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Our division results in 10898.511 with a remaining 0.001.