We look at the division of 96778351 by 77 
The aim is to understand the frequency of 77 in 96778351.

Let's proceed to step 1:
If we divide 9 by 77, we get 0 and a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Include the next digit (6) from the dividend after 9, then repeat: 96 / 77

Advancing to step 2:
96 divided by 77 is 1 with a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 77 from 96 to get 19.
Fetch the next digit (7) from the dividend, attach it to 19 and continue: 197 / 77

On to step 3:
77 goes into 197 2 times with a remainder of 43.
The next digit of our result is 2. 
Result so far: 12.0
Subtract 154 from 197 to get 43.
Take the next digit (7) from the dividend and append it to 43, then repeat: 437 / 77

Advancing to step 4:
If we divide 437 by 77, we get 5 and a remainder of 52.
Record the quotient 5 as the next digit in the result. 
Result so far: 125.0
Subtract 385 from 437 to get 52.
Append the next digit (8) from the dividend to 52 and continue with: 528 / 77

Moving on to step 5:
When dividing 528 by 77, we get 6 with a remainder of 66.
The number 6 becomes the next digit in our result. 
Result so far: 1256.0
Subtract 462 from 528 to get 66.
Bring next digit (3) of the dividend behind the 66 and repeat the process: 663 / 77

On to step 6:
77 can be fit into 663 8 times, resulting in a remainder of 47.
Put 8 as the next digit of the answer. 
Result so far: 12568.0
Deduct 616 from 663 and we're left with 47.
Bring next digit (5) of the dividend behind the 47 and repeat the process: 475 / 77

Moving on to step 7:
77 can be fit into 475 6 times, resulting in a remainder of 13.
The next digit of our result is 6. 
Result so far: 125686.0
The remainder is 13 after subtracting 462 from 475.
Grab the next digit (1) from the dividend, add it to 13, then carry on: 131 / 77

Step 8:
77 can be fit into 131 1 times, resulting in a remainder of 54.
The number 1 becomes the next digit in our result. 
Result so far: 1256861.0
The remainder is 54 after subtracting 77 from 131.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Step 9:
When dividing 540 by 77, we get 7 with a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 1256861.7
The remainder is 1 after subtracting 539 from 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 10:
77 can be fit into 10 0 times, resulting in a remainder of 10.
The next digit of our result is 0. 
Result so far: 1256861.7
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 11:
When dividing 100 by 77, we get 1 with a remainder of 23.
Use 1 as the next digit of our solution. 
Result so far: 1256861.701
The remainder is 23 after subtracting 77 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Advancing to step 12:
When dividing 230 by 77, we get 2 with a remainder of 76.
Use 2 as the next digit of our solution. 
Result so far: 1256861.7012
Deduct 154 from 230 and we're left with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Moving on to step 13:
760 divided by 77 is 9 with a remainder of 67.
The number 9 becomes the next digit in our result. 
Result so far: 1256861.70129
The remainder is 67 after subtracting 693 from 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Step 14:
670 divided by 77 is 8 with a remainder of 54.
Use 8 as the next digit of our solution. 
Result so far: 1256861.701298
Subtracting 616 from 670 leaves us with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Advancing to step 15:
77 goes into 540 7 times with a remainder of 1.
Use 7 as the next digit of our solution. 
Result so far: 1256861.7012987
Subtracting 539 from 540 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 16:
77 goes into 10 0 times with a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 1256861.7012987
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

After the division, we end up with 1256861.7012987 and a remainder of 1e-08.