Let's divide 88769 by 90
We're looking to find how many times 90 goes into 88769.

On to step 1:
The number 90 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Include the next digit (8) from the dividend after 8, then repeat: 88 / 90

Advancing to step 2:
90 can be fit into 88 0 times, resulting in a remainder of 88.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 88 to get 88.
Take the next digit (7) from the dividend and append it to 88, then repeat: 887 / 90

On to step 3:
90 can be fit into 887 9 times, resulting in a remainder of 77.
The next digit of our result is 9. 
Result so far: 9.0
Deduct 810 from 887 and we're left with 77.
Append the next digit (6) from the dividend to 77 and continue with: 776 / 90

Moving on to step 4:
776 divided by 90 is 8 with a remainder of 56.
The next digit of our result is 8. 
Result so far: 98.0
Subtracting 720 from 776 leaves us with 56.
Take the next digit (9) from the dividend and append it to 56, then repeat: 569 / 90

Moving on to step 5:
90 can be fit into 569 6 times, resulting in a remainder of 29.
Record the quotient 6 as the next digit in the result. 
Result so far: 986.0
Subtracting 540 from 569 leaves us with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Moving on to step 6:
If we divide 290 by 90, we get 3 and a remainder of 20.
Put 3 as the next digit of the answer. 
Result so far: 986.3
Subtract 270 from 290 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 7:
The number 90 fits into 200 2 times, leaving a remainder of 20.
The number 2 becomes the next digit in our result. 
Result so far: 986.32
Subtract 180 from 200 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 8:
The number 90 fits into 200 2 times, leaving a remainder of 20.
Use 2 as the next digit of our solution. 
Result so far: 986.322
Subtract 180 from 200 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

After the division, we end up with 986.322 and a remainder of 0.002.