We look at the division of 772861 by 80 
The aim is to understand the frequency of 80 in 772861.

Advancing to step 1:
80 can be fit into 7 0 times, resulting in a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Include the next digit (7) from the dividend after 7, then repeat: 77 / 80

Going ahead to step 2:
80 can be fit into 77 0 times, resulting in a remainder of 77.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 77 and we're left with 77.
Include the next digit (2) from the dividend after 77, then repeat: 772 / 80

On to step 3:
When dividing 772 by 80, we get 9 with a remainder of 52.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we take 720 away from 772, we end up with 52.
Append the next digit (8) from the dividend to 52 and continue with: 528 / 80

On to step 4:
80 goes into 528 6 times with a remainder of 48.
Record the quotient 6 as the next digit in the result. 
Result so far: 96.0
The remainder is 48 after subtracting 480 from 528.
Grab the next digit (6) from the dividend, add it to 48, then carry on: 486 / 80

Moving on to step 5:
486 divided by 80 is 6 with a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 966.0
The remainder is 6 after subtracting 480 from 486.
Fetch the next digit (1) from the dividend, attach it to 6 and continue: 61 / 80

Advancing to step 6:
If we divide 61 by 80, we get 0 and a remainder of 61.
The next digit of our result is 0. 
Result so far: 9660.0
Subtract 0 from 61 to get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Let's proceed to step 7:
The number 80 fits into 610 7 times, leaving a remainder of 50.
Record the quotient 7 as the next digit in the result. 
Result so far: 9660.7
Subtracting 560 from 610 leaves us with 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 8:
80 goes into 500 6 times with a remainder of 20.
The next digit of our result is 6. 
Result so far: 9660.76
If we subtract 480 from 500, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 9:
The number 80 fits into 200 2 times, leaving a remainder of 40.
The next digit of our result is 2. 
Result so far: 9660.762
The remainder is 40 after subtracting 160 from 200.
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 10:
80 can be fit into 400 5 times, resulting in a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 9660.7625
Deduct 400 from 400 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.

Advancing to step 11:
80 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 9660.7625
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.

Going ahead to step 12:
80 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 9660.7625
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.

Our division results in 9660.7625 with a remaining 0.0.