970564 ÷ 15 
The aim is to understand the frequency of 15 in 970564.

Advancing to step 1:
If we divide 9 by 15, we get 0 and a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Take the next digit (7) from the dividend and append it to 9, then repeat: 97 / 15

Moving on to step 2:
If we divide 97 by 15, we get 6 and a remainder of 7.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Subtract 90 from 97 to get 7.
Grab the next digit (0) from the dividend, add it to 7, then carry on: 70 / 15

Moving on to step 3:
When dividing 70 by 15, we get 4 with a remainder of 10.
The number 4 becomes the next digit in our result. 
Result so far: 64.0
If we subtract 60 from 70, we get 10.
Grab the next digit (5) from the dividend, add it to 10, then carry on: 105 / 15

Advancing to step 4:
When dividing 105 by 15, we get 7 with a remainder of 0.
The number 7 becomes the next digit in our result. 
Result so far: 647.0
If we take 105 away from 105, we end up with 0.
Bring next digit (6) of the dividend behind the 0 and repeat the process: 6 / 15

Step 5:
If we divide 6 by 15, we get 0 and a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 6470.0
Subtract 0 from 6 to get 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 15

Moving on to step 6:
64 divided by 15 is 4 with a remainder of 4.
Record the quotient 4 as the next digit in the result. 
Result so far: 64704.0
If we subtract 60 from 64, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 7:
When dividing 40 by 15, we get 2 with a remainder of 10.
Put 2 as the next digit of the answer. 
Result so far: 64704.2
Subtract 30 from 40 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.

Moving on to step 8:
15 can be fit into 100 6 times, resulting in a remainder of 10.
The number 6 becomes the next digit in our result. 
Result so far: 64704.26
Subtract 90 from 100 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.

Moving on to step 9:
100 divided by 15 is 6 with a remainder of 10.
Record the quotient 6 as the next digit in the result. 
Result so far: 64704.266
Subtracting 90 from 100 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final result is 64704.266 with a remainder of 0.001.