124060 divided by 15 
The aim is to understand the frequency of 15 in 124060.

Going ahead to step 1:
When dividing 1 by 15, we get 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 15

Advancing to step 2:
The number 15 fits into 12 0 times, leaving a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 12 and we're left with 12.
Grab the next digit (4) from the dividend, add it to 12, then carry on: 124 / 15

Going ahead to step 3:
124 divided by 15 is 8 with a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
If we subtract 120 from 124, we get 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 15

On to step 4:
15 goes into 40 2 times with a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 82.0
The remainder is 10 after subtracting 30 from 40.
Grab the next digit (6) from the dividend, add it to 10, then carry on: 106 / 15

Let's proceed to step 5:
15 goes into 106 7 times with a remainder of 1.
Use 7 as the next digit of our solution. 
Result so far: 827.0
If we subtract 105 from 106, we get 1.
Append the next digit (0) from the dividend to 1 and continue with: 10 / 15

Let's proceed to step 6:
If we divide 10 by 15, we get 0 and a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 8270.0
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 7:
The number 15 fits into 100 6 times, leaving a remainder of 10.
Use 6 as the next digit of our solution. 
Result so far: 8270.6
Subtract 90 from 100 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 8:
If we divide 100 by 15, we get 6 and a remainder of 10.
The next digit of our result is 6. 
Result so far: 8270.66
The remainder is 10 after subtracting 90 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final outcome is 8270.66, with a leftover of 0.01.