We're dividing 198572 by 80 
The aim is to understand the frequency of 80 in 198572.

Going ahead to step 1:
1 divided by 80 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 80

On to step 2:
If we divide 19 by 80, we get 0 and 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.
Append the next digit (8) from the dividend to 19 and continue with: 198 / 80

On to step 3:
80 can be fit into 198 2 times, resulting in a remainder of 38.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 160 away from 198, we end up with 38.
Bring next digit (5) of the dividend behind the 38 and repeat the process: 385 / 80

Moving on to step 4:
80 goes into 385 4 times with a remainder of 65.
Record the quotient 4 as the next digit in the result. 
Result so far: 24.0
Deduct 320 from 385 and we're left with 65.
Grab the next digit (7) from the dividend, add it to 65, then carry on: 657 / 80

Advancing to step 5:
If we divide 657 by 80, we get 8 and a remainder of 17.
The next digit of our result is 8. 
Result so far: 248.0
Subtract 640 from 657 to get 17.
Bring next digit (2) of the dividend behind the 17 and repeat the process: 172 / 80

On to step 6:
When dividing 172 by 80, we get 2 with a remainder of 12.
Write down 2 as next digit of the result. 
Result so far: 2482.0
If we subtract 160 from 172, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 7:
120 divided by 80 is 1 with a remainder of 40.
The number 1 becomes the next digit in our result. 
Result so far: 2482.1
The remainder is 40 after subtracting 80 from 120.
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:
The number 80 fits into 400 5 times, leaving a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 2482.15
Subtracting 400 from 400 leaves us 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.

On to step 9:
When dividing 0 by 80, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 2482.15
If we subtract 0 from 0, we 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 10:
When dividing 0 by 80, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 2482.15
If we subtract 0 from 0, we 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.

After the division, we end up with 2482.15 and a remainder of 0.0.