97597495 divided by 780 
The aim is to understand the frequency of 780 in 97597495.

Let's proceed to step 1:
When dividing 9 by 780, we get 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Append the next digit (7) from the dividend to 9 and continue with: 97 / 780

Step 2:
97 divided by 780 is 0 with a remainder of 97.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 97 leaves us with 97.
Grab the next digit (5) from the dividend, add it to 97, then carry on: 975 / 780

Moving on to step 3:
If we divide 975 by 780, we get 1 and a remainder of 195.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 780 away from 975, we end up with 195.
Bring next digit (9) of the dividend behind the 195 and repeat the process: 1959 / 780

Moving on to step 4:
If we divide 1959 by 780, we get 2 and a remainder of 399.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
The remainder is 399 after subtracting 1560 from 1959.
Append the next digit (7) from the dividend to 399 and continue with: 3997 / 780

Moving on to step 5:
When dividing 3997 by 780, we get 5 with a remainder of 97.
The next digit of our result is 5. 
Result so far: 125.0
Subtract 3900 from 3997 to get 97.
Append the next digit (4) from the dividend to 97 and continue with: 974 / 780

Advancing to step 6:
780 goes into 974 1 times with a remainder of 194.
Record the quotient 1 as the next digit in the result. 
Result so far: 1251.0
Subtract 780 from 974 to get 194.
Include the next digit (9) from the dividend after 194, then repeat: 1949 / 780

Moving on to step 7:
1949 divided by 780 is 2 with a remainder of 389.
The number 2 becomes the next digit in our result. 
Result so far: 12512.0
If we take 1560 away from 1949, we end up with 389.
Include the next digit (5) from the dividend after 389, then repeat: 3895 / 780

Going ahead to step 8:
When dividing 3895 by 780, we get 4 with a remainder of 775.
Write down 4 as next digit of the result. 
Result so far: 125124.0
The remainder is 775 after subtracting 3120 from 3895.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7750, and continue the process.

Moving on to step 9:
If we divide 7750 by 780, we get 9 and a remainder of 730.
Use 9 as the next digit of our solution. 
Result so far: 125124.9
If we take 7020 away from 7750, we end up with 730.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7300, and continue the process.

On to step 10:
780 goes into 7300 9 times with a remainder of 280.
Write down 9 as next digit of the result. 
Result so far: 125124.99
If we subtract 7020 from 7300, we 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.

The final result is 125124.99 with a remainder of 0.28.