We look at the division of 687552 by 77 
The aim is to understand the frequency of 77 in 687552.

Moving on to step 1:
77 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 77

Advancing to step 2:
The number 77 fits into 68 0 times, leaving a remainder of 68.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 68, we end up with 68.
Append the next digit (7) from the dividend to 68 and continue with: 687 / 77

Advancing to step 3:
77 goes into 687 8 times with a remainder of 71.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtracting 616 from 687 leaves us with 71.
Take the next digit (5) from the dividend and append it to 71, then repeat: 715 / 77

Moving on to step 4:
When dividing 715 by 77, we get 9 with a remainder of 22.
Record the quotient 9 as the next digit in the result. 
Result so far: 89.0
If we take 693 away from 715, we end up with 22.
Include the next digit (5) from the dividend after 22, then repeat: 225 / 77

Advancing to step 5:
77 goes into 225 2 times with a remainder of 71.
Use 2 as the next digit of our solution. 
Result so far: 892.0
If we take 154 away from 225, we end up with 71.
Include the next digit (2) from the dividend after 71, then repeat: 712 / 77

Moving on to step 6:
When dividing 712 by 77, we get 9 with a remainder of 19.
Write down 9 as next digit of the result. 
Result so far: 8929.0
Deduct 693 from 712 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 7:
The number 77 fits into 190 2 times, leaving a remainder of 36.
Put 2 as the next digit of the answer. 
Result so far: 8929.2
If we subtract 154 from 190, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 8:
When dividing 360 by 77, we get 4 with a remainder of 52.
Put 4 as the next digit of the answer. 
Result so far: 8929.24
Deduct 308 from 360 and we're left 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.

Step 9:
77 goes into 520 6 times with a remainder of 58.
Record the quotient 6 as the next digit in the result. 
Result so far: 8929.246
If we take 462 away from 520, we end up with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Advancing to step 10:
580 divided by 77 is 7 with a remainder of 41.
The number 7 becomes the next digit in our result. 
Result so far: 8929.2467
The remainder is 41 after subtracting 539 from 580.
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 11:
77 can be fit into 410 5 times, resulting in a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 8929.24675
Deduct 385 from 410 and we're left 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 12:
The number 77 fits into 250 3 times, leaving a remainder of 19.
Write down 3 as next digit of the result. 
Result so far: 8929.246753
Deduct 231 from 250 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 13:
190 divided by 77 is 2 with a remainder of 36.
Write down 2 as next digit of the result. 
Result so far: 8929.2467532
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.

Going ahead to step 14:
77 can be fit into 360 4 times, resulting in a remainder of 52.
Use 4 as the next digit of our solution. 
Result so far: 8929.24675324
Deduct 308 from 360 and we're left 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.

The quotient of the division is 8929.24675324, and the remainder is 5.2e-08.