We divide 240577 by 90
The aim is to understand the frequency of 90 in 240577.

Step 1:
90 can be fit into 2 0 times, resulting in 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.
Grab the next digit (4) from the dividend, add it to 2, then carry on: 24 / 90

Moving on to step 2:
90 goes into 24 0 times with a remainder of 24.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 24 leaves us with 24.
Include the next digit (0) from the dividend after 24, then repeat: 240 / 90

Advancing to step 3:
90 can be fit into 240 2 times, resulting in a remainder of 60.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtracting 180 from 240 leaves us with 60.
Take the next digit (5) from the dividend and append it to 60, then repeat: 605 / 90

On to step 4:
The number 90 fits into 605 6 times, leaving a remainder of 65.
The number 6 becomes the next digit in our result. 
Result so far: 26.0
Subtract 540 from 605 to get 65.
Grab the next digit (7) from the dividend, add it to 65, then carry on: 657 / 90

Let's proceed to step 5:
657 divided by 90 is 7 with a remainder of 27.
Write down 7 as next digit of the result. 
Result so far: 267.0
The remainder is 27 after subtracting 630 from 657.
Take the next digit (7) from the dividend and append it to 27, then repeat: 277 / 90

Let's proceed to step 6:
277 divided by 90 is 3 with a remainder of 7.
The next digit of our result is 3. 
Result so far: 2673.0
The remainder is 7 after subtracting 270 from 277.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 7:
When dividing 70 by 90, we get 0 with a remainder of 70.
The next digit of our result is 0. 
Result so far: 2673.0
Subtract 0 from 70 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 8:
90 goes into 700 7 times with a remainder of 70.
The number 7 becomes the next digit in our result. 
Result so far: 2673.07
If we take 630 away from 700, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 9:
700 divided by 90 is 7 with a remainder of 70.
The next digit of our result is 7. 
Result so far: 2673.077
Subtracting 630 from 700 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

After the division, we end up with 2673.077 and a remainder of 0.007.