708561 divided by 15 
The aim is to understand the frequency of 15 in 708561.

Going ahead to step 1:
When dividing 7 by 15, we get 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Append the next digit (0) from the dividend to 7 and continue with: 70 / 15

Moving on to step 2:
15 goes into 70 4 times with a remainder of 10.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtracting 60 from 70 leaves us with 10.
Append the next digit (8) from the dividend to 10 and continue with: 108 / 15

Advancing to step 3:
15 can be fit into 108 7 times, resulting in a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 47.0
If we take 105 away from 108, we end up with 3.
Append the next digit (5) from the dividend to 3 and continue with: 35 / 15

Advancing to step 4:
15 can be fit into 35 2 times, resulting in a remainder of 5.
Use 2 as the next digit of our solution. 
Result so far: 472.0
Subtract 30 from 35 to get 5.
Bring next digit (6) of the dividend behind the 5 and repeat the process: 56 / 15

On to step 5:
When dividing 56 by 15, we get 3 with a remainder of 11.
Use 3 as the next digit of our solution. 
Result so far: 4723.0
If we take 45 away from 56, we end up with 11.
Grab the next digit (1) from the dividend, add it to 11, then carry on: 111 / 15

Step 6:
15 goes into 111 7 times with a remainder of 6.
Use 7 as the next digit of our solution. 
Result so far: 47237.0
Deduct 105 from 111 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 7:
If we divide 60 by 15, we get 4 and a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 47237.4
The remainder is 0 after subtracting 60 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 8:
When dividing 0 by 15, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 47237.4
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
The number 15 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 47237.4
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 47237.4 with a remaining 0.0.