We divide 97117 by 80
The aim is to understand the frequency of 80 in 97117.

Step 1:
If we divide 9 by 80, we get 0 and a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Append the next digit (7) from the dividend to 9 and continue with: 97 / 80

Going ahead to step 2:
97 divided by 80 is 1 with a remainder of 17.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 17 after subtracting 80 from 97.
Grab the next digit (1) from the dividend, add it to 17, then carry on: 171 / 80

Moving on to step 3:
171 divided by 80 is 2 with a remainder of 11.
The next digit of our result is 2. 
Result so far: 12.0
If we subtract 160 from 171, we get 11.
Include the next digit (1) from the dividend after 11, then repeat: 111 / 80

On to step 4:
The number 80 fits into 111 1 times, leaving a remainder of 31.
Use 1 as the next digit of our solution. 
Result so far: 121.0
If we take 80 away from 111, we end up with 31.
Take the next digit (7) from the dividend and append it to 31, then repeat: 317 / 80

Going ahead to step 5:
317 divided by 80 is 3 with a remainder of 77.
The next digit of our result is 3. 
Result so far: 1213.0
If we take 240 away from 317, we end up with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

On to step 6:
If we divide 770 by 80, we get 9 and a remainder of 50.
Use 9 as the next digit of our solution. 
Result so far: 1213.9
Subtract 720 from 770 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 7:
80 goes into 500 6 times with a remainder of 20.
The next digit of our result is 6. 
Result so far: 1213.96
The remainder is 20 after subtracting 480 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 8:
If we divide 200 by 80, we get 2 and a remainder of 40.
Put 2 as the next digit of the answer. 
Result so far: 1213.962
If we subtract 160 from 200, we get 40.
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 9:
80 can be fit into 400 5 times, resulting in a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 1213.9625
The remainder is 0 after subtracting 400 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 10:
80 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 1213.9625
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.

Advancing to step 11:
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: 1213.9625
Deduct 0 from 0 and we're left 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 1213.9625, and the remainder is 0.0.