157679 divided by 80 
The aim is to understand the frequency of 80 in 157679.

Moving on to step 1:
80 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 80

Going ahead to step 2:
80 can be fit into 15 0 times, resulting in a remainder of 15.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 15 and we're left with 15.
Fetch the next digit (7) from the dividend, attach it to 15 and continue: 157 / 80

Let's proceed to step 3:
If we divide 157 by 80, we get 1 and a remainder of 77.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 80 from 157, we get 77.
Take the next digit (6) from the dividend and append it to 77, then repeat: 776 / 80

Moving on to step 4:
When dividing 776 by 80, we get 9 with a remainder of 56.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
The remainder is 56 after subtracting 720 from 776.
Append the next digit (7) from the dividend to 56 and continue with: 567 / 80

Moving on to step 5:
The number 80 fits into 567 7 times, leaving a remainder of 7.
Put 7 as the next digit of the answer. 
Result so far: 197.0
If we subtract 560 from 567, we get 7.
Fetch the next digit (9) from the dividend, attach it to 7 and continue: 79 / 80

On to step 6:
80 can be fit into 79 0 times, resulting in a remainder of 79.
Record the quotient 0 as the next digit in the result. 
Result so far: 1970.0
Subtract 0 from 79 to get 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Going ahead to step 7:
80 can be fit into 790 9 times, resulting in a remainder of 70.
Put 9 as the next digit of the answer. 
Result so far: 1970.9
If we subtract 720 from 790, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 8:
80 can be fit into 700 8 times, resulting in a remainder of 60.
The next digit of our result is 8. 
Result so far: 1970.98
Subtracting 640 from 700 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 9:
When dividing 600 by 80, we get 7 with a remainder of 40.
Write down 7 as next digit of the result. 
Result so far: 1970.987
If we take 560 away from 600, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 10:
The number 80 fits into 400 5 times, leaving a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 1970.9875
If we take 400 away from 400, 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.

Step 11:
If we divide 0 by 80, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 1970.9875
Subtract 0 from 0 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.

Moving on to step 12:
If we divide 0 by 80, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1970.9875
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.

The final result is 1970.9875 with a remainder of 0.0.