We're dividing 625683 by 15 
The aim is to understand the frequency of 15 in 625683.

Going ahead to step 1:
6 divided by 15 is 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Grab the next digit (2) from the dividend, add it to 6, then carry on: 62 / 15

On to step 2:
62 divided by 15 is 4 with a remainder of 2.
The next digit of our result is 4. 
Result so far: 4.0
The remainder is 2 after subtracting 60 from 62.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 15

On to step 3:
When dividing 25 by 15, we get 1 with a remainder of 10.
Write down 1 as next digit of the result. 
Result so far: 41.0
If we take 15 away from 25, we end up with 10.
Include the next digit (6) from the dividend after 10, then repeat: 106 / 15

Moving on to step 4:
If we divide 106 by 15, we get 7 and a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 417.0
Deduct 105 from 106 and we're left with 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 15

Let's proceed to step 5:
15 goes into 18 1 times with a remainder of 3.
Use 1 as the next digit of our solution. 
Result so far: 4171.0
Subtract 15 from 18 to get 3.
Fetch the next digit (3) from the dividend, attach it to 3 and continue: 33 / 15

Moving on to step 6:
33 divided by 15 is 2 with a remainder of 3.
The number 2 becomes the next digit in our result. 
Result so far: 41712.0
The remainder is 3 after subtracting 30 from 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 7:
If we divide 30 by 15, we get 2 and a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 41712.2
Subtracting 30 from 30 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.

Moving on to step 8:
The number 15 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 41712.2
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.

Advancing to step 9:
0 divided by 15 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 41712.2
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.

The final result is 41712.2 with a remainder of 0.0.