77722982 divided by 687 
The aim is to understand the frequency of 687 in 77722982.

Step 1:
When dividing 7 by 687, we get 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Append the next digit (7) from the dividend to 7 and continue with: 77 / 687

Going ahead to step 2:
When dividing 77 by 687, we get 0 with a remainder of 77.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 77, we get 77.
Take the next digit (7) from the dividend and append it to 77, then repeat: 777 / 687

Going ahead to step 3:
777 divided by 687 is 1 with a remainder of 90.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 687 from 777 to get 90.
Take the next digit (2) from the dividend and append it to 90, then repeat: 902 / 687

Let's proceed to step 4:
When dividing 902 by 687, we get 1 with a remainder of 215.
Write down 1 as next digit of the result. 
Result so far: 11.0
Subtract 687 from 902 to get 215.
Take the next digit (2) from the dividend and append it to 215, then repeat: 2152 / 687

Moving on to step 5:
687 goes into 2152 3 times with a remainder of 91.
The number 3 becomes the next digit in our result. 
Result so far: 113.0
If we subtract 2061 from 2152, we get 91.
Include the next digit (9) from the dividend after 91, then repeat: 919 / 687

Advancing to step 6:
687 goes into 919 1 times with a remainder of 232.
Put 1 as the next digit of the answer. 
Result so far: 1131.0
Subtracting 687 from 919 leaves us with 232.
Include the next digit (8) from the dividend after 232, then repeat: 2328 / 687

Let's proceed to step 7:
When dividing 2328 by 687, we get 3 with a remainder of 267.
Use 3 as the next digit of our solution. 
Result so far: 11313.0
If we take 2061 away from 2328, we end up with 267.
Include the next digit (2) from the dividend after 267, then repeat: 2672 / 687

Going ahead to step 8:
The number 687 fits into 2672 3 times, leaving a remainder of 611.
Record the quotient 3 as the next digit in the result. 
Result so far: 113133.0
Subtract 2061 from 2672 to get 611.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6110, and continue the process.

Going ahead to step 9:
687 goes into 6110 8 times with a remainder of 614.
The number 8 becomes the next digit in our result. 
Result so far: 113133.8
Subtract 5496 from 6110 to get 614.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6140, and continue the process.

Advancing to step 10:
6140 divided by 687 is 8 with a remainder of 644.
The number 8 becomes the next digit in our result. 
Result so far: 113133.88
If we take 5496 away from 6140, we end up with 644.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6440, and continue the process.

The quotient of the division is 113133.88, and the remainder is 0.644.