89484261 divided by 90 
The aim is to understand the frequency of 90 in 89484261.

Advancing to step 1:
The number 90 fits into 8 0 times, leaving a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Bring next digit (9) of the dividend behind the 8 and repeat the process: 89 / 90

Advancing to step 2:
When dividing 89 by 90, we get 0 with a remainder of 89.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 89, we end up with 89.
Fetch the next digit (4) from the dividend, attach it to 89 and continue: 894 / 90

Let's proceed to step 3:
90 goes into 894 9 times with a remainder of 84.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
The remainder is 84 after subtracting 810 from 894.
Grab the next digit (8) from the dividend, add it to 84, then carry on: 848 / 90

Moving on to step 4:
The number 90 fits into 848 9 times, leaving a remainder of 38.
Put 9 as the next digit of the answer. 
Result so far: 99.0
If we take 810 away from 848, we end up with 38.
Include the next digit (4) from the dividend after 38, then repeat: 384 / 90

Step 5:
When dividing 384 by 90, we get 4 with a remainder of 24.
Use 4 as the next digit of our solution. 
Result so far: 994.0
Subtracting 360 from 384 leaves us with 24.
Grab the next digit (2) from the dividend, add it to 24, then carry on: 242 / 90

Advancing to step 6:
The number 90 fits into 242 2 times, leaving a remainder of 62.
The number 2 becomes the next digit in our result. 
Result so far: 9942.0
If we take 180 away from 242, we end up with 62.
Bring next digit (6) of the dividend behind the 62 and repeat the process: 626 / 90

Step 7:
90 goes into 626 6 times with a remainder of 86.
Use 6 as the next digit of our solution. 
Result so far: 99426.0
Subtracting 540 from 626 leaves us with 86.
Take the next digit (1) from the dividend and append it to 86, then repeat: 861 / 90

Advancing to step 8:
861 divided by 90 is 9 with a remainder of 51.
The number 9 becomes the next digit in our result. 
Result so far: 994269.0
If we take 810 away from 861, we end up with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Advancing to step 9:
When dividing 510 by 90, we get 5 with a remainder of 60.
The next digit of our result is 5. 
Result so far: 994269.5
If we subtract 450 from 510, we 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.

Let's proceed to step 10:
600 divided by 90 is 6 with a remainder of 60.
Write down 6 as next digit of the result. 
Result so far: 994269.56
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.

Step 11:
If we divide 600 by 90, we get 6 and a remainder of 60.
Write down 6 as next digit of the result. 
Result so far: 994269.566
Deduct 540 from 600 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.

The final outcome is 994269.566, with a leftover of 0.006.