444959 divided by 15 
The aim is to understand the frequency of 15 in 444959.

Step 1:
When dividing 4 by 15, we get 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Take the next digit (4) from the dividend and append it to 4, then repeat: 44 / 15

Let's proceed to step 2:
When dividing 44 by 15, we get 2 with a remainder of 14.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtracting 30 from 44 leaves us with 14.
Append the next digit (4) from the dividend to 14 and continue with: 144 / 15

Step 3:
If we divide 144 by 15, we get 9 and a remainder of 9.
The next digit of our result is 9. 
Result so far: 29.0
If we subtract 135 from 144, we get 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 15

On to step 4:
The number 15 fits into 99 6 times, leaving a remainder of 9.
Use 6 as the next digit of our solution. 
Result so far: 296.0
Subtracting 90 from 99 leaves us with 9.
Append the next digit (5) from the dividend to 9 and continue with: 95 / 15

Advancing to step 5:
15 goes into 95 6 times with a remainder of 5.
The number 6 becomes the next digit in our result. 
Result so far: 2966.0
Deduct 90 from 95 and we're left with 5.
Fetch the next digit (9) from the dividend, attach it to 5 and continue: 59 / 15

Going ahead to step 6:
If we divide 59 by 15, we get 3 and a remainder of 14.
Record the quotient 3 as the next digit in the result. 
Result so far: 29663.0
The remainder is 14 after subtracting 45 from 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 7:
15 goes into 140 9 times with a remainder of 5.
Write down 9 as next digit of the result. 
Result so far: 29663.9
If we subtract 135 from 140, 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.

On to step 8:
The number 15 fits into 50 3 times, leaving a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 29663.93
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.

Let's proceed to step 9:
15 goes into 50 3 times with a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 29663.933
The remainder is 5 after subtracting 45 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Our division results in 29663.933 with a remaining 0.0005.