We look at the division of 65760 by 77 
The aim is to understand the frequency of 77 in 65760.

On to step 1:
77 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Take the next digit (5) from the dividend and append it to 6, then repeat: 65 / 77

Step 2:
When dividing 65 by 77, we get 0 with a remainder of 65.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 65 to get 65.
Append the next digit (7) from the dividend to 65 and continue with: 657 / 77

Going ahead to step 3:
77 can be fit into 657 8 times, resulting in a remainder of 41.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
If we subtract 616 from 657, we get 41.
Grab the next digit (6) from the dividend, add it to 41, then carry on: 416 / 77

On to step 4:
If we divide 416 by 77, we get 5 and a remainder of 31.
The next digit of our result is 5. 
Result so far: 85.0
If we take 385 away from 416, we end up with 31.
Grab the next digit (0) from the dividend, add it to 31, then carry on: 310 / 77

Step 5:
77 goes into 310 4 times with a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 854.0
Subtracting 308 from 310 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 6:
20 divided by 77 is 0 with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 854.0
If we take 0 away from 20, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 7:
If we divide 200 by 77, we get 2 and a remainder of 46.
The next digit of our result is 2. 
Result so far: 854.02
If we take 154 away from 200, we end up with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Step 8:
77 goes into 460 5 times with a remainder of 75.
Use 5 as the next digit of our solution. 
Result so far: 854.025
Subtracting 385 from 460 leaves us with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Step 9:
When dividing 750 by 77, we get 9 with a remainder of 57.
Put 9 as the next digit of the answer. 
Result so far: 854.0259
Subtracting 693 from 750 leaves us with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Going ahead to step 10:
77 goes into 570 7 times with a remainder of 31.
Put 7 as the next digit of the answer. 
Result so far: 854.02597
Deduct 539 from 570 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 11:
The number 77 fits into 310 4 times, leaving a remainder of 2.
Write down 4 as next digit of the result. 
Result so far: 854.025974
If we take 308 away from 310, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 12:
When dividing 20 by 77, we get 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 854.025974
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 13:
When dividing 200 by 77, we get 2 with a remainder of 46.
Use 2 as the next digit of our solution. 
Result so far: 854.02597402
The remainder is 46 after subtracting 154 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

The quotient of the division is 854.02597402, and the remainder is 4.6e-08.