99575 divided by 30 
The aim is to understand the frequency of 30 in 99575.

Moving on to step 1:
30 goes into 9 0 times with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Append the next digit (9) from the dividend to 9 and continue with: 99 / 30

Let's proceed to step 2:
The number 30 fits into 99 3 times, leaving a remainder of 9.
Write down 3 as next digit of the result. 
Result so far: 3.0
Deduct 90 from 99 and we're left with 9.
Fetch the next digit (5) from the dividend, attach it to 9 and continue: 95 / 30

Let's proceed to step 3:
95 divided by 30 is 3 with a remainder of 5.
Put 3 as the next digit of the answer. 
Result so far: 33.0
Subtract 90 from 95 to get 5.
Fetch the next digit (7) from the dividend, attach it to 5 and continue: 57 / 30

Moving on to step 4:
57 divided by 30 is 1 with a remainder of 27.
Use 1 as the next digit of our solution. 
Result so far: 331.0
Deduct 30 from 57 and we're left with 27.
Grab the next digit (5) from the dividend, add it to 27, then carry on: 275 / 30

Going ahead to step 5:
275 divided by 30 is 9 with a remainder of 5.
The next digit of our result is 9. 
Result so far: 3319.0
If we take 270 away from 275, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 6:
50 divided by 30 is 1 with a remainder of 20.
Write down 1 as next digit of the result. 
Result so far: 3319.1
The remainder is 20 after subtracting 30 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 7:
30 goes into 200 6 times with a remainder of 20.
Use 6 as the next digit of our solution. 
Result so far: 3319.16
Deduct 180 from 200 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 8:
30 goes into 200 6 times with a remainder of 20.
The number 6 becomes the next digit in our result. 
Result so far: 3319.166
If we subtract 180 from 200, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final result is 3319.166 with a remainder of 0.002.