We're dividing 99728175 by 485 
The aim is to understand the frequency of 485 in 99728175.

On to step 1:
The number 485 fits into 9 0 times, leaving a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Include the next digit (9) from the dividend after 9, then repeat: 99 / 485

Step 2:
The number 485 fits into 99 0 times, leaving a remainder of 99.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 99 leaves us with 99.
Fetch the next digit (7) from the dividend, attach it to 99 and continue: 997 / 485

Going ahead to step 3:
485 goes into 997 2 times with a remainder of 27.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtract 970 from 997 to get 27.
Append the next digit (2) from the dividend to 27 and continue with: 272 / 485

Step 4:
485 goes into 272 0 times with a remainder of 272.
The number 0 becomes the next digit in our result. 
Result so far: 20.0
Subtracting 0 from 272 leaves us with 272.
Grab the next digit (8) from the dividend, add it to 272, then carry on: 2728 / 485

On to step 5:
The number 485 fits into 2728 5 times, leaving a remainder of 303.
Use 5 as the next digit of our solution. 
Result so far: 205.0
If we subtract 2425 from 2728, we get 303.
Bring next digit (1) of the dividend behind the 303 and repeat the process: 3031 / 485

Advancing to step 6:
3031 divided by 485 is 6 with a remainder of 121.
Record the quotient 6 as the next digit in the result. 
Result so far: 2056.0
Subtracting 2910 from 3031 leaves us with 121.
Grab the next digit (7) from the dividend, add it to 121, then carry on: 1217 / 485

Going ahead to step 7:
1217 divided by 485 is 2 with a remainder of 247.
The number 2 becomes the next digit in our result. 
Result so far: 20562.0
If we take 970 away from 1217, we end up with 247.
Append the next digit (5) from the dividend to 247 and continue with: 2475 / 485

Going ahead to step 8:
When dividing 2475 by 485, we get 5 with a remainder of 50.
The next digit of our result is 5. 
Result so far: 205625.0
Subtracting 2425 from 2475 leaves us 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.

Advancing to step 9:
The number 485 fits into 500 1 times, leaving a remainder of 15.
Use 1 as the next digit of our solution. 
Result so far: 205625.1
Subtracting 485 from 500 leaves us 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.

On to step 10:
The number 485 fits into 150 0 times, leaving a remainder of 150.
Use 0 as the next digit of our solution. 
Result so far: 205625.1
Subtract 0 from 150 to get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Advancing to step 11:
485 can be fit into 1500 3 times, resulting in a remainder of 45.
Write down 3 as next digit of the result. 
Result so far: 205625.103
Subtract 1455 from 1500 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Moving on to step 12:
If we divide 450 by 485, we get 0 and a remainder of 450.
Write down 0 as next digit of the result. 
Result so far: 205625.103
If we subtract 0 from 450, we get 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Advancing to step 13:
4500 divided by 485 is 9 with a remainder of 135.
The number 9 becomes the next digit in our result. 
Result so far: 205625.10309
If we subtract 4365 from 4500, we get 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

Step 14:
If we divide 1350 by 485, we get 2 and a remainder of 380.
The next digit of our result is 2. 
Result so far: 205625.103092
Subtract 970 from 1350 to get 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Moving on to step 15:
3800 divided by 485 is 7 with a remainder of 405.
Use 7 as the next digit of our solution. 
Result so far: 205625.1030927
Subtract 3395 from 3800 to get 405.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4050, and continue the process.

Let's proceed to step 16:
4050 divided by 485 is 8 with a remainder of 170.
Use 8 as the next digit of our solution. 
Result so far: 205625.10309278
Deduct 3880 from 4050 and we're left with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

After the division, we end up with 205625.10309278 and a remainder of 1.7e-07.