We divide 77696419 by 780
The aim is to understand the frequency of 780 in 77696419.

Let's proceed to step 1:
When dividing 7 by 780, we get 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Fetch the next digit (7) from the dividend, attach it to 7 and continue: 77 / 780

Let's proceed to step 2:
780 can be fit into 77 0 times, resulting in a remainder of 77.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 77 leaves us with 77.
Grab the next digit (6) from the dividend, add it to 77, then carry on: 776 / 780

On to step 3:
When dividing 776 by 780, we get 0 with a remainder of 776.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 776 to get 776.
Include the next digit (9) from the dividend after 776, then repeat: 7769 / 780

Going ahead to step 4:
780 can be fit into 7769 9 times, resulting in a remainder of 749.
The next digit of our result is 9. 
Result so far: 9.0
Deduct 7020 from 7769 and we're left with 749.
Append the next digit (6) from the dividend to 749 and continue with: 7496 / 780

On to step 5:
If we divide 7496 by 780, we get 9 and a remainder of 476.
Write down 9 as next digit of the result. 
Result so far: 99.0
If we subtract 7020 from 7496, we get 476.
Append the next digit (4) from the dividend to 476 and continue with: 4764 / 780

Advancing to step 6:
If we divide 4764 by 780, we get 6 and a remainder of 84.
The number 6 becomes the next digit in our result. 
Result so far: 996.0
If we take 4680 away from 4764, we end up with 84.
Fetch the next digit (1) from the dividend, attach it to 84 and continue: 841 / 780

Moving on to step 7:
780 goes into 841 1 times with a remainder of 61.
The next digit of our result is 1. 
Result so far: 9961.0
Subtract 780 from 841 to get 61.
Take the next digit (9) from the dividend and append it to 61, then repeat: 619 / 780

On to step 8:
619 divided by 780 is 0 with a remainder of 619.
Record the quotient 0 as the next digit in the result. 
Result so far: 99610.0
Subtract 0 from 619 to get 619.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6190, and continue the process.

Moving on to step 9:
The number 780 fits into 6190 7 times, leaving a remainder of 730.
The number 7 becomes the next digit in our result. 
Result so far: 99610.7
The remainder is 730 after subtracting 5460 from 6190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7300, and continue the process.

Advancing to step 10:
780 can be fit into 7300 9 times, resulting in a remainder of 280.
Record the quotient 9 as the next digit in the result. 
Result so far: 99610.79
The remainder is 280 after subtracting 7020 from 7300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Step 11:
2800 divided by 780 is 3 with a remainder of 460.
The next digit of our result is 3. 
Result so far: 99610.793
Subtracting 2340 from 2800 leaves us with 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Going ahead to step 12:
The number 780 fits into 4600 5 times, leaving a remainder of 700.
Write down 5 as next digit of the result. 
Result so far: 99610.7935
If we subtract 3900 from 4600, we get 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

Advancing to step 13:
When dividing 7000 by 780, we get 8 with a remainder of 760.
The next digit of our result is 8. 
Result so far: 99610.79358
The remainder is 760 after subtracting 6240 from 7000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7600, and continue the process.

Advancing to step 14:
The number 780 fits into 7600 9 times, leaving a remainder of 580.
The number 9 becomes the next digit in our result. 
Result so far: 99610.793589
Subtracting 7020 from 7600 leaves us with 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Advancing to step 15:
When dividing 5800 by 780, we get 7 with a remainder of 340.
Record the quotient 7 as the next digit in the result. 
Result so far: 99610.7935897
The remainder is 340 after subtracting 5460 from 5800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Step 16:
When dividing 3400 by 780, we get 4 with a remainder of 280.
Record the quotient 4 as the next digit in the result. 
Result so far: 99610.79358974
Subtract 3120 from 3400 to get 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

In conclusion, the division gives 99610.79358974 with a balance of 2.8e-07.