Let's divide 173688 by 80
The aim is to understand the frequency of 80 in 173688.

Advancing to step 1:
When dividing 1 by 80, we get 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Append the next digit (7) from the dividend to 1 and continue with: 17 / 80

Going ahead to step 2:
The number 80 fits into 17 0 times, leaving a remainder of 17.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 17 to get 17.
Bring next digit (3) of the dividend behind the 17 and repeat the process: 173 / 80

On to step 3:
80 can be fit into 173 2 times, resulting in a remainder of 13.
The next digit of our result is 2. 
Result so far: 2.0
If we take 160 away from 173, we end up with 13.
Append the next digit (6) from the dividend to 13 and continue with: 136 / 80

On to step 4:
The number 80 fits into 136 1 times, leaving a remainder of 56.
Use 1 as the next digit of our solution. 
Result so far: 21.0
If we take 80 away from 136, we end up with 56.
Take the next digit (8) from the dividend and append it to 56, then repeat: 568 / 80

Going ahead to step 5:
If we divide 568 by 80, we get 7 and a remainder of 8.
Record the quotient 7 as the next digit in the result. 
Result so far: 217.0
If we take 560 away from 568, we end up with 8.
Append the next digit (8) from the dividend to 8 and continue with: 88 / 80

Going ahead to step 6:
88 divided by 80 is 1 with a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 2171.0
If we take 80 away from 88, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 7:
80 can be fit into 80 1 times, resulting in a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 2171.1
Subtract 80 from 80 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.

On to step 8:
80 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 2171.1
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.

Moving on to step 9:
When dividing 0 by 80, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 2171.1
Subtracting 0 from 0 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.

The quotient of the division is 2171.1, and the remainder is 0.0.