686727 ÷ 77 
The aim is to understand the frequency of 77 in 686727.

On to step 1:
If we divide 6 by 77, we get 0 and a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Append the next digit (8) from the dividend to 6 and continue with: 68 / 77

Moving on to step 2:
The number 77 fits into 68 0 times, leaving a remainder of 68.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 68, we get 68.
Bring next digit (6) of the dividend behind the 68 and repeat the process: 686 / 77

Going ahead to step 3:
If we divide 686 by 77, we get 8 and a remainder of 70.
The next digit of our result is 8. 
Result so far: 8.0
The remainder is 70 after subtracting 616 from 686.
Bring next digit (7) of the dividend behind the 70 and repeat the process: 707 / 77

Moving on to step 4:
707 divided by 77 is 9 with a remainder of 14.
Record the quotient 9 as the next digit in the result. 
Result so far: 89.0
If we take 693 away from 707, we end up with 14.
Fetch the next digit (2) from the dividend, attach it to 14 and continue: 142 / 77

Going ahead to step 5:
77 can be fit into 142 1 times, resulting in a remainder of 65.
Write down 1 as next digit of the result. 
Result so far: 891.0
The remainder is 65 after subtracting 77 from 142.
Fetch the next digit (7) from the dividend, attach it to 65 and continue: 657 / 77

Advancing to step 6:
The number 77 fits into 657 8 times, leaving a remainder of 41.
Write down 8 as next digit of the result. 
Result so far: 8918.0
Deduct 616 from 657 and we're left with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Moving on to step 7:
When dividing 410 by 77, we get 5 with a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 8918.5
If we take 385 away from 410, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 8:
When dividing 250 by 77, we get 3 with a remainder of 19.
Write down 3 as next digit of the result. 
Result so far: 8918.53
The remainder is 19 after subtracting 231 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 9:
When dividing 190 by 77, we get 2 with a remainder of 36.
Put 2 as the next digit of the answer. 
Result so far: 8918.532
Subtracting 154 from 190 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 10:
77 goes into 360 4 times with a remainder of 52.
The next digit of our result is 4. 
Result so far: 8918.5324
Subtracting 308 from 360 leaves us with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 11:
The number 77 fits into 520 6 times, leaving a remainder of 58.
Put 6 as the next digit of the answer. 
Result so far: 8918.53246
Subtract 462 from 520 to get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

On to step 12:
When dividing 580 by 77, we get 7 with a remainder of 41.
Record the quotient 7 as the next digit in the result. 
Result so far: 8918.532467
Subtract 539 from 580 to get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Moving on to step 13:
If we divide 410 by 77, we get 5 and a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 8918.5324675
Subtract 385 from 410 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 14:
77 can be fit into 250 3 times, resulting in a remainder of 19.
Write down 3 as next digit of the result. 
Result so far: 8918.53246753
Subtract 231 from 250 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

The quotient of the division is 8918.53246753, and the remainder is 1.9e-08.