We're dividing 272238 by 90 
The aim is to understand the frequency of 90 in 272238.

Let's proceed to step 1:
If we divide 2 by 90, we get 0 and a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Bring next digit (7) of the dividend behind the 2 and repeat the process: 27 / 90

Step 2:
When dividing 27 by 90, we get 0 with a remainder of 27.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 27 after subtracting 0 from 27.
Append the next digit (2) from the dividend to 27 and continue with: 272 / 90

Going ahead to step 3:
If we divide 272 by 90, we get 3 and a remainder of 2.
Use 3 as the next digit of our solution. 
Result so far: 3.0
The remainder is 2 after subtracting 270 from 272.
Take the next digit (2) from the dividend and append it to 2, then repeat: 22 / 90

Let's proceed to step 4:
If we divide 22 by 90, we get 0 and a remainder of 22.
Write down 0 as next digit of the result. 
Result so far: 30.0
The remainder is 22 after subtracting 0 from 22.
Take the next digit (3) from the dividend and append it to 22, then repeat: 223 / 90

Step 5:
90 goes into 223 2 times with a remainder of 43.
The number 2 becomes the next digit in our result. 
Result so far: 302.0
Subtract 180 from 223 to get 43.
Grab the next digit (8) from the dividend, add it to 43, then carry on: 438 / 90

Moving on to step 6:
The number 90 fits into 438 4 times, leaving a remainder of 78.
Put 4 as the next digit of the answer. 
Result so far: 3024.0
Subtract 360 from 438 to get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Advancing to step 7:
When dividing 780 by 90, we get 8 with a remainder of 60.
Put 8 as the next digit of the answer. 
Result so far: 3024.8
If we take 720 away from 780, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 8:
When dividing 600 by 90, we get 6 with a remainder of 60.
The next digit of our result is 6. 
Result so far: 3024.86
If we take 540 away from 600, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 9:
The number 90 fits into 600 6 times, leaving a remainder of 60.
The number 6 becomes the next digit in our result. 
Result so far: 3024.866
Subtracting 540 from 600 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Our division results in 3024.866 with a remaining 0.006.