We divide 98469798 by 90
The aim is to understand the frequency of 90 in 98469798.

Moving on to step 1:
When dividing 9 by 90, we get 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Append the next digit (8) from the dividend to 9 and continue with: 98 / 90

Let's proceed to step 2:
The number 90 fits into 98 1 times, leaving a remainder of 8.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 90 from 98, we get 8.
Append the next digit (4) from the dividend to 8 and continue with: 84 / 90

Moving on to step 3:
90 goes into 84 0 times with a remainder of 84.
Write down 0 as next digit of the result. 
Result so far: 10.0
Deduct 0 from 84 and we're left with 84.
Bring next digit (6) of the dividend behind the 84 and repeat the process: 846 / 90

Advancing to step 4:
90 can be fit into 846 9 times, resulting in a remainder of 36.
Write down 9 as next digit of the result. 
Result so far: 109.0
If we take 810 away from 846, we end up with 36.
Append the next digit (9) from the dividend to 36 and continue with: 369 / 90

Let's proceed to step 5:
The number 90 fits into 369 4 times, leaving a remainder of 9.
Put 4 as the next digit of the answer. 
Result so far: 1094.0
Subtract 360 from 369 to get 9.
Include the next digit (7) from the dividend after 9, then repeat: 97 / 90

On to step 6:
When dividing 97 by 90, we get 1 with a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 10941.0
Subtracting 90 from 97 leaves us with 7.
Include the next digit (9) from the dividend after 7, then repeat: 79 / 90

Moving on to step 7:
When dividing 79 by 90, we get 0 with a remainder of 79.
Record the quotient 0 as the next digit in the result. 
Result so far: 109410.0
Deduct 0 from 79 and we're left with 79.
Fetch the next digit (8) from the dividend, attach it to 79 and continue: 798 / 90

Advancing to step 8:
798 divided by 90 is 8 with a remainder of 78.
The number 8 becomes the next digit in our result. 
Result so far: 1094108.0
Deduct 720 from 798 and we're left with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Let's proceed to step 9:
90 goes into 780 8 times with a remainder of 60.
The number 8 becomes the next digit in our result. 
Result so far: 1094108.8
Deduct 720 from 780 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 10:
The number 90 fits into 600 6 times, leaving a remainder of 60.
Write down 6 as next digit of the result. 
Result so far: 1094108.86
If we take 540 away from 600, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 11:
90 goes into 600 6 times with a remainder of 60.
Use 6 as the next digit of our solution. 
Result so far: 1094108.866
Subtract 540 from 600 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The final result is 1094108.866 with a remainder of 0.006.