198372 ÷ 30 
The aim is to understand the frequency of 30 in 198372.

On to step 1:
The number 30 fits into 1 0 times, leaving a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Include the next digit (9) from the dividend after 1, then repeat: 19 / 30

Advancing to step 2:
30 can be fit into 19 0 times, resulting in a remainder of 19.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 19 and we're left with 19.
Include the next digit (8) from the dividend after 19, then repeat: 198 / 30

Let's proceed to step 3:
30 goes into 198 6 times with a remainder of 18.
Put 6 as the next digit of the answer. 
Result so far: 6.0
If we subtract 180 from 198, we get 18.
Append the next digit (3) from the dividend to 18 and continue with: 183 / 30

Going ahead to step 4:
30 can be fit into 183 6 times, resulting in a remainder of 3.
Use 6 as the next digit of our solution. 
Result so far: 66.0
The remainder is 3 after subtracting 180 from 183.
Grab the next digit (7) from the dividend, add it to 3, then carry on: 37 / 30

Advancing to step 5:
30 goes into 37 1 times with a remainder of 7.
Write down 1 as next digit of the result. 
Result so far: 661.0
If we take 30 away from 37, we end up with 7.
Fetch the next digit (2) from the dividend, attach it to 7 and continue: 72 / 30

Going ahead to step 6:
72 divided by 30 is 2 with a remainder of 12.
Put 2 as the next digit of the answer. 
Result so far: 6612.0
If we take 60 away from 72, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 7:
If we divide 120 by 30, we get 4 and a remainder of 0.
Write down 4 as next digit of the result. 
Result so far: 6612.4
Subtract 120 from 120 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 8:
The number 30 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 6612.4
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
0 divided by 30 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 6612.4
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 6612.4 and a remainder of 0.0.