We divide 898325 by 90
The aim is to understand the frequency of 90 in 898325.

Step 1:
8 divided by 90 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 90

Step 2:
90 goes into 89 0 times with a remainder of 89.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 89 leaves us with 89.
Take the next digit (8) from the dividend and append it to 89, then repeat: 898 / 90

Going ahead to step 3:
When dividing 898 by 90, we get 9 with a remainder of 88.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
The remainder is 88 after subtracting 810 from 898.
Take the next digit (3) from the dividend and append it to 88, then repeat: 883 / 90

Moving on to step 4:
If we divide 883 by 90, we get 9 and a remainder of 73.
The number 9 becomes the next digit in our result. 
Result so far: 99.0
If we subtract 810 from 883, we get 73.
Bring next digit (2) of the dividend behind the 73 and repeat the process: 732 / 90

Advancing to step 5:
90 goes into 732 8 times with a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 998.0
If we subtract 720 from 732, we get 12.
Include the next digit (5) from the dividend after 12, then repeat: 125 / 90

Let's proceed to step 6:
The number 90 fits into 125 1 times, leaving a remainder of 35.
Use 1 as the next digit of our solution. 
Result so far: 9981.0
Deduct 90 from 125 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 7:
If we divide 350 by 90, we get 3 and a remainder of 80.
The next digit of our result is 3. 
Result so far: 9981.3
If we take 270 away from 350, 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.

Going ahead to step 8:
When dividing 800 by 90, we get 8 with a remainder of 80.
The number 8 becomes the next digit in our result. 
Result so far: 9981.38
Subtracting 720 from 800 leaves us 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.

Let's proceed to step 9:
When dividing 800 by 90, we get 8 with a remainder of 80.
The next digit of our result is 8. 
Result so far: 9981.388
The remainder is 80 after subtracting 720 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

The quotient of the division is 9981.388, and the remainder is 0.008.