We're dividing 433003 by 15 
The aim is to understand the frequency of 15 in 433003.

On to step 1:
4 divided by 15 is 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Grab the next digit (3) from the dividend, add it to 4, then carry on: 43 / 15

On to step 2:
When dividing 43 by 15, we get 2 with a remainder of 13.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtract 30 from 43 to get 13.
Bring next digit (3) of the dividend behind the 13 and repeat the process: 133 / 15

Moving on to step 3:
The number 15 fits into 133 8 times, leaving a remainder of 13.
The number 8 becomes the next digit in our result. 
Result so far: 28.0
If we take 120 away from 133, we end up with 13.
Fetch the next digit (0) from the dividend, attach it to 13 and continue: 130 / 15

Let's proceed to step 4:
15 goes into 130 8 times with a remainder of 10.
Write down 8 as next digit of the result. 
Result so far: 288.0
Deduct 120 from 130 and we're left with 10.
Include the next digit (0) from the dividend after 10, then repeat: 100 / 15

Step 5:
If we divide 100 by 15, we get 6 and a remainder of 10.
Record the quotient 6 as the next digit in the result. 
Result so far: 2886.0
The remainder is 10 after subtracting 90 from 100.
Grab the next digit (3) from the dividend, add it to 10, then carry on: 103 / 15

Let's proceed to step 6:
15 can be fit into 103 6 times, resulting in a remainder of 13.
The number 6 becomes the next digit in our result. 
Result so far: 28866.0
If we subtract 90 from 103, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 7:
130 divided by 15 is 8 with a remainder of 10.
The number 8 becomes the next digit in our result. 
Result so far: 28866.8
If we take 120 away from 130, we end up 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.

On to step 8:
15 goes into 100 6 times with a remainder of 10.
The next digit of our result is 6. 
Result so far: 28866.86
If we take 90 away from 100, we end up 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.

On to step 9:
The number 15 fits into 100 6 times, leaving a remainder of 10.
Write down 6 as next digit of the result. 
Result so far: 28866.866
Subtracting 90 from 100 leaves us 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.

In conclusion, the division gives 28866.866 with a balance of 0.001.