We're dividing 204745 by 90 
The aim is to understand the frequency of 90 in 204745.

Going ahead to step 1:
90 can be fit into 2 0 times, resulting in a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 90

Moving on to step 2:
When dividing 20 by 90, we get 0 with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 20 to get 20.
Bring next digit (4) of the dividend behind the 20 and repeat the process: 204 / 90

Step 3:
The number 90 fits into 204 2 times, leaving a remainder of 24.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we take 180 away from 204, we end up with 24.
Take the next digit (7) from the dividend and append it to 24, then repeat: 247 / 90

Moving on to step 4:
The number 90 fits into 247 2 times, leaving a remainder of 67.
The next digit of our result is 2. 
Result so far: 22.0
Deduct 180 from 247 and we're left with 67.
Include the next digit (4) from the dividend after 67, then repeat: 674 / 90

Going ahead to step 5:
90 can be fit into 674 7 times, resulting in a remainder of 44.
The number 7 becomes the next digit in our result. 
Result so far: 227.0
Deduct 630 from 674 and we're left with 44.
Include the next digit (5) from the dividend after 44, then repeat: 445 / 90

Step 6:
The number 90 fits into 445 4 times, leaving a remainder of 85.
The next digit of our result is 4. 
Result so far: 2274.0
Subtract 360 from 445 to get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Advancing to step 7:
The number 90 fits into 850 9 times, leaving a remainder of 40.
The next digit of our result is 9. 
Result so far: 2274.9
Deduct 810 from 850 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 8:
90 can be fit into 400 4 times, resulting in a remainder of 40.
Write down 4 as next digit of the result. 
Result so far: 2274.94
If we take 360 away from 400, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 9:
The number 90 fits into 400 4 times, leaving a remainder of 40.
Put 4 as the next digit of the answer. 
Result so far: 2274.944
The remainder is 40 after subtracting 360 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

After the division, we end up with 2274.944 and a remainder of 0.004.