We look at the division of 85375163 by 780 
The aim is to understand the frequency of 780 in 85375163.

Going ahead to step 1:
780 goes into 8 0 times with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 780

Moving on to step 2:
When dividing 85 by 780, we get 0 with a remainder of 85.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 85 leaves us with 85.
Fetch the next digit (3) from the dividend, attach it to 85 and continue: 853 / 780

Step 3:
853 divided by 780 is 1 with a remainder of 73.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 780 away from 853, we end up with 73.
Grab the next digit (7) from the dividend, add it to 73, then carry on: 737 / 780

Moving on to step 4:
The number 780 fits into 737 0 times, leaving a remainder of 737.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Deduct 0 from 737 and we're left with 737.
Include the next digit (5) from the dividend after 737, then repeat: 7375 / 780

Step 5:
When dividing 7375 by 780, we get 9 with a remainder of 355.
Put 9 as the next digit of the answer. 
Result so far: 109.0
Subtracting 7020 from 7375 leaves us with 355.
Append the next digit (1) from the dividend to 355 and continue with: 3551 / 780

Let's proceed to step 6:
3551 divided by 780 is 4 with a remainder of 431.
The number 4 becomes the next digit in our result. 
Result so far: 1094.0
The remainder is 431 after subtracting 3120 from 3551.
Fetch the next digit (6) from the dividend, attach it to 431 and continue: 4316 / 780

Step 7:
780 can be fit into 4316 5 times, resulting in a remainder of 416.
Use 5 as the next digit of our solution. 
Result so far: 10945.0
Deduct 3900 from 4316 and we're left with 416.
Append the next digit (3) from the dividend to 416 and continue with: 4163 / 780

Going ahead to step 8:
The number 780 fits into 4163 5 times, leaving a remainder of 263.
The next digit of our result is 5. 
Result so far: 109455.0
Deduct 3900 from 4163 and we're left with 263.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2630, and continue the process.

Moving on to step 9:
The number 780 fits into 2630 3 times, leaving a remainder of 290.
The number 3 becomes the next digit in our result. 
Result so far: 109455.3
Subtracting 2340 from 2630 leaves us with 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

On to step 10:
2900 divided by 780 is 3 with a remainder of 560.
The number 3 becomes the next digit in our result. 
Result so far: 109455.33
If we subtract 2340 from 2900, we get 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

After the division, we end up with 109455.33 and a remainder of 0.56.