80954921 divided by 780 
The aim is to understand the frequency of 780 in 80954921.

Going ahead to step 1:
780 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (0) from the dividend and append it to 8, then repeat: 80 / 780

On to step 2:
780 can be fit into 80 0 times, resulting in a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 80, we get 80.
Include the next digit (9) from the dividend after 80, then repeat: 809 / 780

Step 3:
780 can be fit into 809 1 times, resulting in a remainder of 29.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 780 from 809 to get 29.
Append the next digit (5) from the dividend to 29 and continue with: 295 / 780

Let's proceed to step 4:
If we divide 295 by 780, we get 0 and a remainder of 295.
Use 0 as the next digit of our solution. 
Result so far: 10.0
Subtracting 0 from 295 leaves us with 295.
Grab the next digit (4) from the dividend, add it to 295, then carry on: 2954 / 780

Going ahead to step 5:
The number 780 fits into 2954 3 times, leaving a remainder of 614.
Record the quotient 3 as the next digit in the result. 
Result so far: 103.0
Deduct 2340 from 2954 and we're left with 614.
Grab the next digit (9) from the dividend, add it to 614, then carry on: 6149 / 780

Let's proceed to step 6:
When dividing 6149 by 780, we get 7 with a remainder of 689.
The number 7 becomes the next digit in our result. 
Result so far: 1037.0
Deduct 5460 from 6149 and we're left with 689.
Include the next digit (2) from the dividend after 689, then repeat: 6892 / 780

On to step 7:
6892 divided by 780 is 8 with a remainder of 652.
Use 8 as the next digit of our solution. 
Result so far: 10378.0
Subtracting 6240 from 6892 leaves us with 652.
Bring next digit (1) of the dividend behind the 652 and repeat the process: 6521 / 780

Going ahead to step 8:
6521 divided by 780 is 8 with a remainder of 281.
Put 8 as the next digit of the answer. 
Result so far: 103788.0
Subtract 6240 from 6521 to get 281.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2810, and continue the process.

Moving on to step 9:
The number 780 fits into 2810 3 times, leaving a remainder of 470.
Put 3 as the next digit of the answer. 
Result so far: 103788.3
The remainder is 470 after subtracting 2340 from 2810.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4700, and continue the process.

Let's proceed to step 10:
4700 divided by 780 is 6 with a remainder of 20.
Use 6 as the next digit of our solution. 
Result so far: 103788.36
If we subtract 4680 from 4700, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 11:
If we divide 200 by 780, we get 0 and a remainder of 200.
Record the quotient 0 as the next digit in the result. 
Result so far: 103788.36
If we subtract 0 from 200, we get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Advancing to step 12:
2000 divided by 780 is 2 with a remainder of 440.
Put 2 as the next digit of the answer. 
Result so far: 103788.3602
The remainder is 440 after subtracting 1560 from 2000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Step 13:
The number 780 fits into 4400 5 times, leaving a remainder of 500.
Record the quotient 5 as the next digit in the result. 
Result so far: 103788.36025
The remainder is 500 after subtracting 3900 from 4400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Going ahead to step 14:
The number 780 fits into 5000 6 times, leaving a remainder of 320.
The number 6 becomes the next digit in our result. 
Result so far: 103788.360256
If we subtract 4680 from 5000, we get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Moving on to step 15:
780 goes into 3200 4 times with a remainder of 80.
Use 4 as the next digit of our solution. 
Result so far: 103788.3602564
Subtracting 3120 from 3200 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 16:
800 divided by 780 is 1 with a remainder of 20.
The number 1 becomes the next digit in our result. 
Result so far: 103788.36025641
The remainder is 20 after subtracting 780 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Our division results in 103788.36025641 with a remaining 2e-08.