We look at the division of 91763779 by 780 
The aim is to understand the frequency of 780 in 91763779.

Let's proceed to step 1:
780 can be fit into 9 0 times, resulting in a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Fetch the next digit (1) from the dividend, attach it to 9 and continue: 91 / 780

Advancing to step 2:
91 divided by 780 is 0 with a remainder of 91.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 91 leaves us with 91.
Grab the next digit (7) from the dividend, add it to 91, then carry on: 917 / 780

Moving on to step 3:
917 divided by 780 is 1 with a remainder of 137.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 780 from 917 to get 137.
Include the next digit (6) from the dividend after 137, then repeat: 1376 / 780

Advancing to step 4:
The number 780 fits into 1376 1 times, leaving a remainder of 596.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
If we subtract 780 from 1376, we get 596.
Bring next digit (3) of the dividend behind the 596 and repeat the process: 5963 / 780

Moving on to step 5:
When dividing 5963 by 780, we get 7 with a remainder of 503.
Put 7 as the next digit of the answer. 
Result so far: 117.0
Subtract 5460 from 5963 to get 503.
Fetch the next digit (7) from the dividend, attach it to 503 and continue: 5037 / 780

Let's proceed to step 6:
5037 divided by 780 is 6 with a remainder of 357.
Record the quotient 6 as the next digit in the result. 
Result so far: 1176.0
If we take 4680 away from 5037, we end up with 357.
Append the next digit (7) from the dividend to 357 and continue with: 3577 / 780

Moving on to step 7:
The number 780 fits into 3577 4 times, leaving a remainder of 457.
Write down 4 as next digit of the result. 
Result so far: 11764.0
Subtracting 3120 from 3577 leaves us with 457.
Append the next digit (9) from the dividend to 457 and continue with: 4579 / 780

Moving on to step 8:
When dividing 4579 by 780, we get 5 with a remainder of 679.
The number 5 becomes the next digit in our result. 
Result so far: 117645.0
Subtract 3900 from 4579 to get 679.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6790, and continue the process.

Step 9:
780 can be fit into 6790 8 times, resulting in a remainder of 550.
Record the quotient 8 as the next digit in the result. 
Result so far: 117645.8
Subtract 6240 from 6790 to get 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5500, and continue the process.

On to step 10:
780 can be fit into 5500 7 times, resulting in a remainder of 40.
The number 7 becomes the next digit in our result. 
Result so far: 117645.87
Subtracting 5460 from 5500 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 11:
780 goes into 400 0 times with a remainder of 400.
Record the quotient 0 as the next digit in the result. 
Result so far: 117645.87
The remainder is 400 after subtracting 0 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Step 12:
The number 780 fits into 4000 5 times, leaving a remainder of 100.
Record the quotient 5 as the next digit in the result. 
Result so far: 117645.8705
Subtract 3900 from 4000 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Advancing to step 13:
780 goes into 1000 1 times with a remainder of 220.
Put 1 as the next digit of the answer. 
Result so far: 117645.87051
The remainder is 220 after subtracting 780 from 1000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

On to step 14:
The number 780 fits into 2200 2 times, leaving a remainder of 640.
The number 2 becomes the next digit in our result. 
Result so far: 117645.870512
Deduct 1560 from 2200 and we're left with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Let's proceed to step 15:
If we divide 6400 by 780, we get 8 and a remainder of 160.
Write down 8 as next digit of the result. 
Result so far: 117645.8705128
Subtract 6240 from 6400 to get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Going ahead to step 16:
If we divide 1600 by 780, we get 2 and a remainder of 40.
Record the quotient 2 as the next digit in the result. 
Result so far: 117645.87051282
If we take 1560 away from 1600, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Our division results in 117645.87051282 with a remaining 4e-08.