647294 divided by 15 
The aim is to understand the frequency of 15 in 647294.

Let's proceed to step 1:
The number 15 fits into 6 0 times, leaving a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 15

Moving on to step 2:
If we divide 64 by 15, we get 4 and a remainder of 4.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we take 60 away from 64, we end up with 4.
Append the next digit (7) from the dividend to 4 and continue with: 47 / 15

Going ahead to step 3:
If we divide 47 by 15, we get 3 and a remainder of 2.
Use 3 as the next digit of our solution. 
Result so far: 43.0
Deduct 45 from 47 and we're left with 2.
Fetch the next digit (2) from the dividend, attach it to 2 and continue: 22 / 15

Moving on to step 4:
When dividing 22 by 15, we get 1 with a remainder of 7.
Write down 1 as next digit of the result. 
Result so far: 431.0
If we subtract 15 from 22, we get 7.
Grab the next digit (9) from the dividend, add it to 7, then carry on: 79 / 15

Let's proceed to step 5:
79 divided by 15 is 5 with a remainder of 4.
Record the quotient 5 as the next digit in the result. 
Result so far: 4315.0
If we take 75 away from 79, we end up with 4.
Include the next digit (4) from the dividend after 4, then repeat: 44 / 15

Step 6:
15 can be fit into 44 2 times, resulting in a remainder of 14.
The next digit of our result is 2. 
Result so far: 43152.0
If we take 30 away from 44, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 7:
When dividing 140 by 15, we get 9 with a remainder of 5.
The number 9 becomes the next digit in our result. 
Result so far: 43152.9
If we take 135 away from 140, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 8:
50 divided by 15 is 3 with a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 43152.93
If we subtract 45 from 50, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 9:
15 goes into 50 3 times with a remainder of 5.
Put 3 as the next digit of the answer. 
Result so far: 43152.933
Deduct 45 from 50 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Our division results in 43152.933 with a remaining 0.0005.