778767 divided by 77 
The aim is to understand the frequency of 77 in 778767.

Step 1:
77 goes into 7 0 times with a remainder of 7.
Use 0 as the next digit of our solution. 
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 / 77

On to step 2:
77 goes into 77 1 times with a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 0 after subtracting 77 from 77.
Include the next digit (8) from the dividend after 0, then repeat: 8 / 77

Advancing to step 3:
The number 77 fits into 8 0 times, leaving a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
If we subtract 0 from 8, we get 8.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 77

Let's proceed to step 4:
When dividing 87 by 77, we get 1 with a remainder of 10.
Put 1 as the next digit of the answer. 
Result so far: 101.0
If we take 77 away from 87, we end up with 10.
Grab the next digit (6) from the dividend, add it to 10, then carry on: 106 / 77

Let's proceed to step 5:
When dividing 106 by 77, we get 1 with a remainder of 29.
Write down 1 as next digit of the result. 
Result so far: 1011.0
Deduct 77 from 106 and we're left with 29.
Include the next digit (7) from the dividend after 29, then repeat: 297 / 77

On to step 6:
The number 77 fits into 297 3 times, leaving a remainder of 66.
The next digit of our result is 3. 
Result so far: 10113.0
If we subtract 231 from 297, we get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

On to step 7:
77 can be fit into 660 8 times, resulting in a remainder of 44.
Write down 8 as next digit of the result. 
Result so far: 10113.8
If we subtract 616 from 660, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 8:
440 divided by 77 is 5 with a remainder of 55.
Put 5 as the next digit of the answer. 
Result so far: 10113.85
If we take 385 away from 440, we end up with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Advancing to step 9:
77 can be fit into 550 7 times, resulting in a remainder of 11.
The number 7 becomes the next digit in our result. 
Result so far: 10113.857
Subtracting 539 from 550 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 10:
If we divide 110 by 77, we get 1 and a remainder of 33.
Write down 1 as next digit of the result. 
Result so far: 10113.8571
Subtracting 77 from 110 leaves us with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Going ahead to step 11:
The number 77 fits into 330 4 times, leaving a remainder of 22.
Record the quotient 4 as the next digit in the result. 
Result so far: 10113.85714
The remainder is 22 after subtracting 308 from 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 12:
The number 77 fits into 220 2 times, leaving a remainder of 66.
The next digit of our result is 2. 
Result so far: 10113.857142
The remainder is 66 after subtracting 154 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Advancing to step 13:
When dividing 660 by 77, we get 8 with a remainder of 44.
The number 8 becomes the next digit in our result. 
Result so far: 10113.8571428
The remainder is 44 after subtracting 616 from 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 14:
77 can be fit into 440 5 times, resulting in a remainder of 55.
The number 5 becomes the next digit in our result. 
Result so far: 10113.85714285
Subtracting 385 from 440 leaves us with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

The final outcome is 10113.85714285, with a leftover of 5.5e-08.