We look at the division of 77647035 by 80 
The aim is to understand the frequency of 80 in 77647035.

Moving on to step 1:
7 divided by 80 is 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 80

Let's proceed to step 2:
When dividing 77 by 80, we get 0 with a remainder of 77.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 77 after subtracting 0 from 77.
Fetch the next digit (6) from the dividend, attach it to 77 and continue: 776 / 80

Step 3:
When dividing 776 by 80, we get 9 with a remainder of 56.
The next digit of our result is 9. 
Result so far: 9.0
Subtracting 720 from 776 leaves us with 56.
Take the next digit (4) from the dividend and append it to 56, then repeat: 564 / 80

Step 4:
80 goes into 564 7 times with a remainder of 4.
The next digit of our result is 7. 
Result so far: 97.0
If we subtract 560 from 564, we get 4.
Fetch the next digit (7) from the dividend, attach it to 4 and continue: 47 / 80

Advancing to step 5:
47 divided by 80 is 0 with a remainder of 47.
Write down 0 as next digit of the result. 
Result so far: 970.0
If we subtract 0 from 47, we get 47.
Include the next digit (0) from the dividend after 47, then repeat: 470 / 80

Advancing to step 6:
The number 80 fits into 470 5 times, leaving a remainder of 70.
The next digit of our result is 5. 
Result so far: 9705.0
If we take 400 away from 470, we end up with 70.
Take the next digit (3) from the dividend and append it to 70, then repeat: 703 / 80

Moving on to step 7:
80 can be fit into 703 8 times, resulting in a remainder of 63.
Put 8 as the next digit of the answer. 
Result so far: 97058.0
The remainder is 63 after subtracting 640 from 703.
Append the next digit (5) from the dividend to 63 and continue with: 635 / 80

Going ahead to step 8:
635 divided by 80 is 7 with a remainder of 75.
Put 7 as the next digit of the answer. 
Result so far: 970587.0
The remainder is 75 after subtracting 560 from 635.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

On to step 9:
When dividing 750 by 80, we get 9 with a remainder of 30.
The number 9 becomes the next digit in our result. 
Result so far: 970587.9
If we take 720 away from 750, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 10:
The number 80 fits into 300 3 times, leaving a remainder of 60.
The number 3 becomes the next digit in our result. 
Result so far: 970587.93
Subtract 240 from 300 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 11:
The number 80 fits into 600 7 times, leaving a remainder of 40.
The number 7 becomes the next digit in our result. 
Result so far: 970587.937
Deduct 560 from 600 and we're left 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.

Let's proceed to step 12:
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: 970587.9375
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 13:
80 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 970587.9375
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.

Let's proceed to step 14:
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: 970587.9375
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.

Our division results in 970587.9375 with a remaining 0.0.