706440 divided by 15 
The aim is to understand the frequency of 15 in 706440.

Let's proceed to step 1:
15 can be fit into 7 0 times, resulting in a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Grab the next digit (0) from the dividend, add it to 7, then carry on: 70 / 15

On to step 2:
If we divide 70 by 15, we get 4 and 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.
Grab the next digit (6) from the dividend, add it to 10, then carry on: 106 / 15

Advancing to step 3:
15 can be fit into 106 7 times, resulting in a remainder of 1.
Use 7 as the next digit of our solution. 
Result so far: 47.0
If we subtract 105 from 106, we get 1.
Take the next digit (4) from the dividend and append it to 1, then repeat: 14 / 15

Advancing to step 4:
When dividing 14 by 15, we get 0 with a remainder of 14.
Record the quotient 0 as the next digit in the result. 
Result so far: 470.0
Subtract 0 from 14 to get 14.
Append the next digit (4) from the dividend to 14 and continue with: 144 / 15

Going ahead to step 5:
When dividing 144 by 15, we get 9 with a remainder of 9.
Put 9 as the next digit of the answer. 
Result so far: 4709.0
If we take 135 away from 144, we end up with 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 15

On to step 6:
If we divide 90 by 15, we get 6 and a remainder of 0.
Put 6 as the next digit of the answer. 
Result so far: 47096.0
Deduct 90 from 90 and we're left 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 7:
When dividing 0 by 15, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 47096.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 8:
15 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 47096.0
Subtracting 0 from 0 leaves us 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.

Our division results in 47096.0 with a remaining 0.0.