119231 ÷ 90 
The aim is to understand the frequency of 90 in 119231.

Moving on to step 1:
The number 90 fits into 1 0 times, leaving a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Append the next digit (1) from the dividend to 1 and continue with: 11 / 90

Moving on to step 2:
90 goes into 11 0 times with a remainder of 11.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 11, we end up with 11.
Take the next digit (9) from the dividend and append it to 11, then repeat: 119 / 90

Advancing to step 3:
119 divided by 90 is 1 with a remainder of 29.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 90 from 119, we get 29.
Include the next digit (2) from the dividend after 29, then repeat: 292 / 90

Going ahead to step 4:
When dividing 292 by 90, we get 3 with a remainder of 22.
The next digit of our result is 3. 
Result so far: 13.0
The remainder is 22 after subtracting 270 from 292.
Grab the next digit (3) from the dividend, add it to 22, then carry on: 223 / 90

On to step 5:
When dividing 223 by 90, we get 2 with a remainder of 43.
Put 2 as the next digit of the answer. 
Result so far: 132.0
If we take 180 away from 223, we end up with 43.
Grab the next digit (1) from the dividend, add it to 43, then carry on: 431 / 90

On to step 6:
The number 90 fits into 431 4 times, leaving a remainder of 71.
Put 4 as the next digit of the answer. 
Result so far: 1324.0
Subtracting 360 from 431 leaves us with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Moving on to step 7:
The number 90 fits into 710 7 times, leaving a remainder of 80.
The next digit of our result is 7. 
Result so far: 1324.7
Deduct 630 from 710 and we're left 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.

Advancing to step 8:
When dividing 800 by 90, we get 8 with a remainder of 80.
Write down 8 as next digit of the result. 
Result so far: 1324.78
If we take 720 away from 800, 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.

Moving on to step 9:
The number 90 fits into 800 8 times, leaving a remainder of 80.
Record the quotient 8 as the next digit in the result. 
Result so far: 1324.788
Deduct 720 from 800 and we're left 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.

Our division results in 1324.788 with a remaining 0.008.