224475 ÷ 90 
The aim is to understand the frequency of 90 in 224475.

Step 1:
2 divided by 90 is 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Append the next digit (2) from the dividend to 2 and continue with: 22 / 90

Moving on to step 2:
90 goes into 22 0 times with a remainder of 22.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 22 leaves us with 22.
Fetch the next digit (4) from the dividend, attach it to 22 and continue: 224 / 90

Moving on to step 3:
If we divide 224 by 90, we get 2 and a remainder of 44.
The next digit of our result is 2. 
Result so far: 2.0
Subtracting 180 from 224 leaves us with 44.
Take the next digit (4) from the dividend and append it to 44, then repeat: 444 / 90

Moving on to step 4:
The number 90 fits into 444 4 times, leaving a remainder of 84.
Record the quotient 4 as the next digit in the result. 
Result so far: 24.0
Subtracting 360 from 444 leaves us with 84.
Bring next digit (7) of the dividend behind the 84 and repeat the process: 847 / 90

Moving on to step 5:
90 can be fit into 847 9 times, resulting in a remainder of 37.
The next digit of our result is 9. 
Result so far: 249.0
Subtract 810 from 847 to get 37.
Append the next digit (5) from the dividend to 37 and continue with: 375 / 90

Going ahead to step 6:
90 goes into 375 4 times with a remainder of 15.
The number 4 becomes the next digit in our result. 
Result so far: 2494.0
If we take 360 away from 375, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 7:
150 divided by 90 is 1 with a remainder of 60.
Record the quotient 1 as the next digit in the result. 
Result so far: 2494.1
If we take 90 away from 150, 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.

Advancing to step 8:
600 divided by 90 is 6 with a remainder of 60.
The next digit of our result is 6. 
Result so far: 2494.16
Deduct 540 from 600 and we're left 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 9:
600 divided by 90 is 6 with a remainder of 60.
Write down 6 as next digit of the result. 
Result so far: 2494.166
Deduct 540 from 600 and we're left 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.

The final result is 2494.166 with a remainder of 0.006.