Let's divide 24226961 by 90
The aim is to understand the frequency of 90 in 24226961.

Going ahead to step 1:
If we divide 2 by 90, we get 0 and a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Fetch the next digit (4) from the dividend, attach it to 2 and continue: 24 / 90

Advancing to step 2:
24 divided by 90 is 0 with a remainder of 24.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 24 to get 24.
Append the next digit (2) from the dividend to 24 and continue with: 242 / 90

Going ahead to step 3:
When dividing 242 by 90, we get 2 with a remainder of 62.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtracting 180 from 242 leaves us with 62.
Fetch the next digit (2) from the dividend, attach it to 62 and continue: 622 / 90

On to step 4:
The number 90 fits into 622 6 times, leaving a remainder of 82.
The next digit of our result is 6. 
Result so far: 26.0
If we subtract 540 from 622, we get 82.
Append the next digit (6) from the dividend to 82 and continue with: 826 / 90

Let's proceed to step 5:
90 can be fit into 826 9 times, resulting in a remainder of 16.
Use 9 as the next digit of our solution. 
Result so far: 269.0
Deduct 810 from 826 and we're left with 16.
Fetch the next digit (9) from the dividend, attach it to 16 and continue: 169 / 90

Let's proceed to step 6:
90 goes into 169 1 times with a remainder of 79.
The number 1 becomes the next digit in our result. 
Result so far: 2691.0
If we subtract 90 from 169, we get 79.
Take the next digit (6) from the dividend and append it to 79, then repeat: 796 / 90

Moving on to step 7:
90 can be fit into 796 8 times, resulting in a remainder of 76.
The next digit of our result is 8. 
Result so far: 26918.0
If we take 720 away from 796, we end up with 76.
Bring next digit (1) of the dividend behind the 76 and repeat the process: 761 / 90

Advancing to step 8:
If we divide 761 by 90, we get 8 and a remainder of 41.
Put 8 as the next digit of the answer. 
Result so far: 269188.0
Subtract 720 from 761 to get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

On to step 9:
90 can be fit into 410 4 times, resulting in a remainder of 50.
The number 4 becomes the next digit in our result. 
Result so far: 269188.4
If we take 360 away from 410, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 10:
The number 90 fits into 500 5 times, leaving a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 269188.45
The remainder is 50 after subtracting 450 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 11:
90 can be fit into 500 5 times, resulting in a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 269188.455
The remainder is 50 after subtracting 450 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final result is 269188.455 with a remainder of 0.005.