Let's divide 127610 by 90
The aim is to understand the frequency of 90 in 127610.

Let's proceed to step 1:
When dividing 1 by 90, we get 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 90

On to step 2:
If we divide 12 by 90, we get 0 and a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Bring next digit (7) of the dividend behind the 12 and repeat the process: 127 / 90

On to step 3:
If we divide 127 by 90, we get 1 and a remainder of 37.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 90 from 127 and we're left with 37.
Fetch the next digit (6) from the dividend, attach it to 37 and continue: 376 / 90

Let's proceed to step 4:
90 goes into 376 4 times with a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
Subtracting 360 from 376 leaves us with 16.
Grab the next digit (1) from the dividend, add it to 16, then carry on: 161 / 90

Step 5:
When dividing 161 by 90, we get 1 with a remainder of 71.
Record the quotient 1 as the next digit in the result. 
Result so far: 141.0
If we take 90 away from 161, we end up with 71.
Bring next digit (0) of the dividend behind the 71 and repeat the process: 710 / 90

Step 6:
The number 90 fits into 710 7 times, leaving a remainder of 80.
The next digit of our result is 7. 
Result so far: 1417.0
Subtracting 630 from 710 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 7:
90 can be fit into 800 8 times, resulting in a remainder of 80.
Use 8 as the next digit of our solution. 
Result so far: 1417.8
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.

Let's proceed to step 8:
800 divided by 90 is 8 with a remainder of 80.
The number 8 becomes the next digit in our result. 
Result so far: 1417.88
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.

After the division, we end up with 1417.88 and a remainder of 0.08.