76776406 divided by 77 
The aim is to understand the frequency of 77 in 76776406.

Moving on to step 1:
When dividing 7 by 77, we get 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Append the next digit (6) from the dividend to 7 and continue with: 76 / 77

Let's proceed to step 2:
77 can be fit into 76 0 times, resulting in a remainder of 76.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 76 leaves us with 76.
Take the next digit (7) from the dividend and append it to 76, then repeat: 767 / 77

Moving on to step 3:
When dividing 767 by 77, we get 9 with a remainder of 74.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Deduct 693 from 767 and we're left with 74.
Fetch the next digit (7) from the dividend, attach it to 74 and continue: 747 / 77

Advancing to step 4:
747 divided by 77 is 9 with a remainder of 54.
Use 9 as the next digit of our solution. 
Result so far: 99.0
Deduct 693 from 747 and we're left with 54.
Append the next digit (6) from the dividend to 54 and continue with: 546 / 77

Advancing to step 5:
When dividing 546 by 77, we get 7 with a remainder of 7.
Record the quotient 7 as the next digit in the result. 
Result so far: 997.0
Deduct 539 from 546 and we're left with 7.
Grab the next digit (4) from the dividend, add it to 7, then carry on: 74 / 77

Let's proceed to step 6:
77 goes into 74 0 times with a remainder of 74.
Write down 0 as next digit of the result. 
Result so far: 9970.0
If we subtract 0 from 74, we get 74.
Fetch the next digit (0) from the dividend, attach it to 74 and continue: 740 / 77

Advancing to step 7:
77 can be fit into 740 9 times, resulting in a remainder of 47.
Put 9 as the next digit of the answer. 
Result so far: 99709.0
If we take 693 away from 740, we end up with 47.
Grab the next digit (6) from the dividend, add it to 47, then carry on: 476 / 77

Going ahead to step 8:
When dividing 476 by 77, we get 6 with a remainder of 14.
Use 6 as the next digit of our solution. 
Result so far: 997096.0
Deduct 462 from 476 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 9:
When dividing 140 by 77, we get 1 with a remainder of 63.
Use 1 as the next digit of our solution. 
Result so far: 997096.1
If we take 77 away from 140, we end up with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

On to step 10:
630 divided by 77 is 8 with a remainder of 14.
Use 8 as the next digit of our solution. 
Result so far: 997096.18
If we subtract 616 from 630, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 11:
140 divided by 77 is 1 with a remainder of 63.
Use 1 as the next digit of our solution. 
Result so far: 997096.181
Deduct 77 from 140 and we're left with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Going ahead to step 12:
630 divided by 77 is 8 with a remainder of 14.
Record the quotient 8 as the next digit in the result. 
Result so far: 997096.1818
If we subtract 616 from 630, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 13:
The number 77 fits into 140 1 times, leaving a remainder of 63.
Record the quotient 1 as the next digit in the result. 
Result so far: 997096.18181
Subtracting 77 from 140 leaves us with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Advancing to step 14:
77 goes into 630 8 times with a remainder of 14.
The next digit of our result is 8. 
Result so far: 997096.181818
If we subtract 616 from 630, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 15:
When dividing 140 by 77, we get 1 with a remainder of 63.
Write down 1 as next digit of the result. 
Result so far: 997096.1818181
The remainder is 63 after subtracting 77 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Let's proceed to step 16:
77 can be fit into 630 8 times, resulting in a remainder of 14.
The next digit of our result is 8. 
Result so far: 997096.18181818
Deduct 616 from 630 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

In conclusion, the division gives 997096.18181818 with a balance of 1.4e-08.