We look at the division of 815935 by 97 
The aim is to understand the frequency of 97 in 815935.

Advancing to step 1:
8 divided by 97 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 97

On to step 2:
The number 97 fits into 81 0 times, leaving a remainder of 81.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 81 leaves us with 81.
Bring next digit (5) of the dividend behind the 81 and repeat the process: 815 / 97

Going ahead to step 3:
97 can be fit into 815 8 times, resulting in a remainder of 39.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Deduct 776 from 815 and we're left with 39.
Append the next digit (9) from the dividend to 39 and continue with: 399 / 97

Step 4:
When dividing 399 by 97, we get 4 with a remainder of 11.
The number 4 becomes the next digit in our result. 
Result so far: 84.0
Deduct 388 from 399 and we're left with 11.
Bring next digit (3) of the dividend behind the 11 and repeat the process: 113 / 97

Moving on to step 5:
97 can be fit into 113 1 times, resulting in a remainder of 16.
Put 1 as the next digit of the answer. 
Result so far: 841.0
Subtracting 97 from 113 leaves us with 16.
Append the next digit (5) from the dividend to 16 and continue with: 165 / 97

Let's proceed to step 6:
97 goes into 165 1 times with a remainder of 68.
The number 1 becomes the next digit in our result. 
Result so far: 8411.0
Deduct 97 from 165 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Moving on to step 7:
When dividing 680 by 97, we get 7 with a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 8411.7
The remainder is 1 after subtracting 679 from 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 8:
97 goes into 10 0 times with a remainder of 10.
The next digit of our result is 0. 
Result so far: 8411.7
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 9:
When dividing 100 by 97, we get 1 with a remainder of 3.
Use 1 as the next digit of our solution. 
Result so far: 8411.701
Subtract 97 from 100 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 10:
The number 97 fits into 30 0 times, leaving a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 8411.701
If we take 0 away from 30, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 11:
The number 97 fits into 300 3 times, leaving a remainder of 9.
Record the quotient 3 as the next digit in the result. 
Result so far: 8411.70103
If we take 291 away from 300, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 12:
97 can be fit into 90 0 times, resulting in a remainder of 90.
Put 0 as the next digit of the answer. 
Result so far: 8411.70103
If we subtract 0 from 90, we get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Advancing to step 13:
When dividing 900 by 97, we get 9 with a remainder of 27.
Record the quotient 9 as the next digit in the result. 
Result so far: 8411.7010309
Subtracting 873 from 900 leaves us with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 14:
97 can be fit into 270 2 times, resulting in a remainder of 76.
The number 2 becomes the next digit in our result. 
Result so far: 8411.70103092
If we take 194 away from 270, we end up with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

The final outcome is 8411.70103092, with a leftover of 7.6e-08.