We look at the division of 86498 by 90 
We want to divide 86498 by 90.

Step 1:
90 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 90

Advancing to step 2:
90 can be fit into 86 0 times, resulting in a remainder of 86.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 86 leaves us with 86.
Include the next digit (4) from the dividend after 86, then repeat: 864 / 90

Moving on to step 3:
90 goes into 864 9 times with a remainder of 54.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Deduct 810 from 864 and we're left with 54.
Fetch the next digit (9) from the dividend, attach it to 54 and continue: 549 / 90

On to step 4:
The number 90 fits into 549 6 times, leaving a remainder of 9.
The next digit of our result is 6. 
Result so far: 96.0
Subtract 540 from 549 to get 9.
Grab the next digit (8) from the dividend, add it to 9, then carry on: 98 / 90

Moving on to step 5:
When dividing 98 by 90, we get 1 with a remainder of 8.
The number 1 becomes the next digit in our result. 
Result so far: 961.0
Subtracting 90 from 98 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 6:
If we divide 80 by 90, we get 0 and a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 961.0
Deduct 0 from 80 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 7:
800 divided by 90 is 8 with a remainder of 80.
The number 8 becomes the next digit in our result. 
Result so far: 961.08
If we take 720 away from 800, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 8:
90 goes into 800 8 times with a remainder of 80.
Use 8 as the next digit of our solution. 
Result so far: 961.088
If we subtract 720 from 800, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

The final outcome is 961.088, with a leftover of 0.008.