We divide 97447 by 90
The aim is to understand the frequency of 90 in 97447.

Step 1:
90 can be fit into 9 0 times, resulting in a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Bring next digit (7) of the dividend behind the 9 and repeat the process: 97 / 90

Let's proceed to step 2:
The number 90 fits into 97 1 times, leaving a remainder of 7.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 90 from 97, we get 7.
Bring next digit (4) of the dividend behind the 7 and repeat the process: 74 / 90

On to step 3:
The number 90 fits into 74 0 times, leaving a remainder of 74.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
The remainder is 74 after subtracting 0 from 74.
Include the next digit (4) from the dividend after 74, then repeat: 744 / 90

Let's proceed to step 4:
If we divide 744 by 90, we get 8 and a remainder of 24.
Write down 8 as next digit of the result. 
Result so far: 108.0
If we take 720 away from 744, we end up with 24.
Fetch the next digit (7) from the dividend, attach it to 24 and continue: 247 / 90

Step 5:
The number 90 fits into 247 2 times, leaving a remainder of 67.
The number 2 becomes the next digit in our result. 
Result so far: 1082.0
Subtract 180 from 247 to get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Advancing to step 6:
The number 90 fits into 670 7 times, leaving a remainder of 40.
Use 7 as the next digit of our solution. 
Result so far: 1082.7
Subtract 630 from 670 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 7:
If we divide 400 by 90, we get 4 and a remainder of 40.
The number 4 becomes the next digit in our result. 
Result so far: 1082.74
If we take 360 away from 400, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 8:
When dividing 400 by 90, we get 4 with a remainder of 40.
Put 4 as the next digit of the answer. 
Result so far: 1082.744
Subtract 360 from 400 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

After the division, we end up with 1082.744 and a remainder of 0.004.