We're dividing 98547602 by 90 
The aim is to understand the frequency of 90 in 98547602.

Moving on to step 1:
9 divided by 90 is 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Append the next digit (8) from the dividend to 9 and continue with: 98 / 90

Going ahead to step 2:
When dividing 98 by 90, we get 1 with a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 90 from 98 to get 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 90

Going ahead to step 3:
If we divide 85 by 90, we get 0 and a remainder of 85.
Write down 0 as next digit of the result. 
Result so far: 10.0
If we subtract 0 from 85, we get 85.
Grab the next digit (4) from the dividend, add it to 85, then carry on: 854 / 90

Advancing to step 4:
The number 90 fits into 854 9 times, leaving a remainder of 44.
Use 9 as the next digit of our solution. 
Result so far: 109.0
Subtracting 810 from 854 leaves us with 44.
Take the next digit (7) from the dividend and append it to 44, then repeat: 447 / 90

Going ahead to step 5:
When dividing 447 by 90, we get 4 with a remainder of 87.
The next digit of our result is 4. 
Result so far: 1094.0
The remainder is 87 after subtracting 360 from 447.
Append the next digit (6) from the dividend to 87 and continue with: 876 / 90

Going ahead to step 6:
90 can be fit into 876 9 times, resulting in a remainder of 66.
The next digit of our result is 9. 
Result so far: 10949.0
The remainder is 66 after subtracting 810 from 876.
Include the next digit (0) from the dividend after 66, then repeat: 660 / 90

Going ahead to step 7:
90 can be fit into 660 7 times, resulting in a remainder of 30.
Put 7 as the next digit of the answer. 
Result so far: 109497.0
Subtract 630 from 660 to get 30.
Fetch the next digit (2) from the dividend, attach it to 30 and continue: 302 / 90

On to step 8:
The number 90 fits into 302 3 times, leaving a remainder of 32.
Put 3 as the next digit of the answer. 
Result so far: 1094973.0
The remainder is 32 after subtracting 270 from 302.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 9:
90 goes into 320 3 times with a remainder of 50.
Record the quotient 3 as the next digit in the result. 
Result so far: 1094973.3
Subtracting 270 from 320 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 10:
90 can be fit into 500 5 times, resulting in a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 1094973.35
If we subtract 450 from 500, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 11:
If we divide 500 by 90, we get 5 and a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 1094973.355
The remainder is 50 after subtracting 450 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The quotient of the division is 1094973.355, and the remainder is 0.005.