443710 divided by 15 
The aim is to understand the frequency of 15 in 443710.

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
Subtract 0 from 4 to get 4.
Include the next digit (4) from the dividend after 4, then repeat: 44 / 15

Advancing to step 2:
The number 15 fits into 44 2 times, leaving a remainder of 14.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtracting 30 from 44 leaves us with 14.
Append the next digit (3) from the dividend to 14 and continue with: 143 / 15

Let's proceed to step 3:
When dividing 143 by 15, we get 9 with a remainder of 8.
The next digit of our result is 9. 
Result so far: 29.0
Subtracting 135 from 143 leaves us with 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 15

On to step 4:
87 divided by 15 is 5 with a remainder of 12.
Record the quotient 5 as the next digit in the result. 
Result so far: 295.0
Deduct 75 from 87 and we're left with 12.
Append the next digit (1) from the dividend to 12 and continue with: 121 / 15

Advancing to step 5:
When dividing 121 by 15, we get 8 with a remainder of 1.
The next digit of our result is 8. 
Result so far: 2958.0
If we take 120 away from 121, we end up with 1.
Append the next digit (0) from the dividend to 1 and continue with: 10 / 15

Moving on to step 6:
When dividing 10 by 15, we get 0 with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 29580.0
Subtracting 0 from 10 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.

Advancing to step 7:
When dividing 100 by 15, we get 6 with a remainder of 10.
The next digit of our result is 6. 
Result so far: 29580.6
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.

On to step 8:
15 can be fit into 100 6 times, resulting in a remainder of 10.
The next digit of our result is 6. 
Result so far: 29580.66
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 29580.66 with a balance of 0.01.