We look at the division of 532955 by 90 
The aim is to understand the frequency of 90 in 532955.

Moving on to step 1:
When dividing 5 by 90, we get 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 90

Let's proceed to step 2:
53 divided by 90 is 0 with a remainder of 53.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 53 leaves us with 53.
Bring next digit (2) of the dividend behind the 53 and repeat the process: 532 / 90

On to step 3:
90 can be fit into 532 5 times, resulting in a remainder of 82.
Use 5 as the next digit of our solution. 
Result so far: 5.0
The remainder is 82 after subtracting 450 from 532.
Take the next digit (9) from the dividend and append it to 82, then repeat: 829 / 90

Moving on to step 4:
829 divided by 90 is 9 with a remainder of 19.
The number 9 becomes the next digit in our result. 
Result so far: 59.0
The remainder is 19 after subtracting 810 from 829.
Append the next digit (5) from the dividend to 19 and continue with: 195 / 90

Advancing to step 5:
90 can be fit into 195 2 times, resulting in a remainder of 15.
Record the quotient 2 as the next digit in the result. 
Result so far: 592.0
Subtract 180 from 195 to get 15.
Bring next digit (5) of the dividend behind the 15 and repeat the process: 155 / 90

Moving on to step 6:
155 divided by 90 is 1 with a remainder of 65.
The next digit of our result is 1. 
Result so far: 5921.0
Subtract 90 from 155 to get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Moving on to step 7:
90 can be fit into 650 7 times, resulting in a remainder of 20.
Record the quotient 7 as the next digit in the result. 
Result so far: 5921.7
Subtracting 630 from 650 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 8:
200 divided by 90 is 2 with a remainder of 20.
The number 2 becomes the next digit in our result. 
Result so far: 5921.72
If we subtract 180 from 200, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 9:
200 divided by 90 is 2 with a remainder of 20.
Put 2 as the next digit of the answer. 
Result so far: 5921.722
Subtracting 180 from 200 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final outcome is 5921.722, with a leftover of 0.002.