We're dividing 97021501 by 605 
The aim is to understand the frequency of 605 in 97021501.

Advancing to step 1:
9 divided by 605 is 0 with a remainder of 9.
The number 0 becomes the next digit in our 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 / 605

Going ahead to step 2:
When dividing 97 by 605, we get 0 with a remainder of 97.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 97, we get 97.
Append the next digit (0) from the dividend to 97 and continue with: 970 / 605

On to step 3:
605 can be fit into 970 1 times, resulting in a remainder of 365.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 605 away from 970, we end up with 365.
Take the next digit (2) from the dividend and append it to 365, then repeat: 3652 / 605

On to step 4:
The number 605 fits into 3652 6 times, leaving a remainder of 22.
The next digit of our result is 6. 
Result so far: 16.0
If we subtract 3630 from 3652, we get 22.
Fetch the next digit (1) from the dividend, attach it to 22 and continue: 221 / 605

Moving on to step 5:
When dividing 221 by 605, we get 0 with a remainder of 221.
The number 0 becomes the next digit in our result. 
Result so far: 160.0
The remainder is 221 after subtracting 0 from 221.
Take the next digit (5) from the dividend and append it to 221, then repeat: 2215 / 605

Let's proceed to step 6:
605 goes into 2215 3 times with a remainder of 400.
Use 3 as the next digit of our solution. 
Result so far: 1603.0
The remainder is 400 after subtracting 1815 from 2215.
Include the next digit (0) from the dividend after 400, then repeat: 4000 / 605

Step 7:
The number 605 fits into 4000 6 times, leaving a remainder of 370.
Write down 6 as next digit of the result. 
Result so far: 16036.0
The remainder is 370 after subtracting 3630 from 4000.
Include the next digit (1) from the dividend after 370, then repeat: 3701 / 605

Let's proceed to step 8:
When dividing 3701 by 605, we get 6 with a remainder of 71.
The number 6 becomes the next digit in our result. 
Result so far: 160366.0
If we take 3630 away from 3701, we end up with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Advancing to step 9:
605 can be fit into 710 1 times, resulting in a remainder of 105.
Use 1 as the next digit of our solution. 
Result so far: 160366.1
If we take 605 away from 710, we end up with 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Moving on to step 10:
If we divide 1050 by 605, we get 1 and a remainder of 445.
Record the quotient 1 as the next digit in the result. 
Result so far: 160366.11
Deduct 605 from 1050 and we're left with 445.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4450, and continue the process.

The final outcome is 160366.11, with a leftover of 0.445.