976478 divided by 77 
The aim is to understand the frequency of 77 in 976478.

Going ahead to step 1:
9 divided by 77 is 0 with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Append the next digit (7) from the dividend to 9 and continue with: 97 / 77

Moving on to step 2:
77 can be fit into 97 1 times, resulting in a remainder of 20.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 20 after subtracting 77 from 97.
Append the next digit (6) from the dividend to 20 and continue with: 206 / 77

On to step 3:
206 divided by 77 is 2 with a remainder of 52.
The next digit of our result is 2. 
Result so far: 12.0
If we subtract 154 from 206, we get 52.
Take the next digit (4) from the dividend and append it to 52, then repeat: 524 / 77

Step 4:
If we divide 524 by 77, we get 6 and a remainder of 62.
Put 6 as the next digit of the answer. 
Result so far: 126.0
If we subtract 462 from 524, we get 62.
Take the next digit (7) from the dividend and append it to 62, then repeat: 627 / 77

Going ahead to step 5:
The number 77 fits into 627 8 times, leaving a remainder of 11.
The next digit of our result is 8. 
Result so far: 1268.0
Subtracting 616 from 627 leaves us with 11.
Fetch the next digit (8) from the dividend, attach it to 11 and continue: 118 / 77

Step 6:
77 goes into 118 1 times with a remainder of 41.
The number 1 becomes the next digit in our result. 
Result so far: 12681.0
Subtract 77 from 118 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.

Step 7:
77 can be fit into 410 5 times, resulting in a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 12681.5
The remainder is 25 after subtracting 385 from 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 8:
250 divided by 77 is 3 with a remainder of 19.
The number 3 becomes the next digit in our result. 
Result so far: 12681.53
Subtracting 231 from 250 leaves us 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.

On to step 9:
77 can be fit into 190 2 times, resulting in a remainder of 36.
The number 2 becomes the next digit in our result. 
Result so far: 12681.532
Deduct 154 from 190 and we're left 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.

Let's proceed to step 10:
77 goes into 360 4 times with a remainder of 52.
Use 4 as the next digit of our solution. 
Result so far: 12681.5324
If we subtract 308 from 360, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Advancing to step 11:
When dividing 520 by 77, we get 6 with a remainder of 58.
Write down 6 as next digit of the result. 
Result so far: 12681.53246
If we subtract 462 from 520, we 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.

Going ahead to step 12:
If we divide 580 by 77, we get 7 and a remainder of 41.
The next digit of our result is 7. 
Result so far: 12681.532467
Subtracting 539 from 580 leaves us 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.

Advancing to step 13:
77 can be fit into 410 5 times, resulting in a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 12681.5324675
If we subtract 385 from 410, we 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.

Let's proceed to step 14:
When dividing 250 by 77, we get 3 with a remainder of 19.
The number 3 becomes the next digit in our result. 
Result so far: 12681.53246753
Subtracting 231 from 250 leaves us 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.

The final result is 12681.53246753 with a remainder of 1.9e-08.