We look at the division of 948681 by 15 
The aim is to understand the frequency of 15 in 948681.

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
Subtracting 0 from 9 leaves us with 9.
Append the next digit (4) from the dividend to 9 and continue with: 94 / 15

On to step 2:
When dividing 94 by 15, we get 6 with a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
If we subtract 90 from 94, we get 4.
Grab the next digit (8) from the dividend, add it to 4, then carry on: 48 / 15

Going ahead to step 3:
15 can be fit into 48 3 times, resulting in a remainder of 3.
Record the quotient 3 as the next digit in the result. 
Result so far: 63.0
Subtract 45 from 48 to get 3.
Append the next digit (6) from the dividend to 3 and continue with: 36 / 15

On to step 4:
If we divide 36 by 15, we get 2 and a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 632.0
Deduct 30 from 36 and we're left with 6.
Fetch the next digit (8) from the dividend, attach it to 6 and continue: 68 / 15

Let's proceed to step 5:
15 can be fit into 68 4 times, resulting in a remainder of 8.
Write down 4 as next digit of the result. 
Result so far: 6324.0
Deduct 60 from 68 and we're left with 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 15

Advancing to step 6:
81 divided by 15 is 5 with a remainder of 6.
Write down 5 as next digit of the result. 
Result so far: 63245.0
The remainder is 6 after subtracting 75 from 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 7:
When dividing 60 by 15, we get 4 with a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 63245.4
Subtract 60 from 60 to 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.

Moving on to step 8:
15 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 63245.4
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.

Let's proceed to step 9:
0 divided by 15 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 63245.4
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.

After the division, we end up with 63245.4 and a remainder of 0.0.