We're dividing 457109 by 15 
The aim is to understand the frequency of 15 in 457109.

Advancing to step 1:
If we divide 4 by 15, we get 0 and a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 15

Let's proceed to step 2:
45 divided by 15 is 3 with a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtract 45 from 45 to get 0.
Take the next digit (7) from the dividend and append it to 0, then repeat: 7 / 15

Going ahead to step 3:
The number 15 fits into 7 0 times, leaving a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 30.0
Subtracting 0 from 7 leaves us with 7.
Fetch the next digit (1) from the dividend, attach it to 7 and continue: 71 / 15

On to step 4:
15 goes into 71 4 times with a remainder of 11.
Record the quotient 4 as the next digit in the result. 
Result so far: 304.0
Subtracting 60 from 71 leaves us with 11.
Include the next digit (0) from the dividend after 11, then repeat: 110 / 15

On to step 5:
If we divide 110 by 15, we get 7 and a remainder of 5.
Put 7 as the next digit of the answer. 
Result so far: 3047.0
Subtract 105 from 110 to get 5.
Include the next digit (9) from the dividend after 5, then repeat: 59 / 15

Step 6:
When dividing 59 by 15, we get 3 with a remainder of 14.
Use 3 as the next digit of our solution. 
Result so far: 30473.0
Subtracting 45 from 59 leaves us 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.

Advancing to step 7:
15 can be fit into 140 9 times, resulting in a remainder of 5.
Put 9 as the next digit of the answer. 
Result so far: 30473.9
The remainder is 5 after subtracting 135 from 140.
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:
If we divide 50 by 15, we get 3 and a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 30473.93
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.

Step 9:
50 divided by 15 is 3 with a remainder of 5.
Use 3 as the next digit of our solution. 
Result so far: 30473.933
If we take 45 away from 50, 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.

In conclusion, the division gives 30473.933 with a balance of 0.0005.