We're dividing 439061 by 15 
The aim is to understand the frequency of 15 in 439061.

Going ahead 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 take 0 away from 4, we end up with 4.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 15

Moving on to step 2:
When dividing 43 by 15, we get 2 with a remainder of 13.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 13 after subtracting 30 from 43.
Bring next digit (9) of the dividend behind the 13 and repeat the process: 139 / 15

Going ahead to step 3:
If we divide 139 by 15, we get 9 and a remainder of 4.
Use 9 as the next digit of our solution. 
Result so far: 29.0
Deduct 135 from 139 and we're left with 4.
Include the next digit (0) from the dividend after 4, then repeat: 40 / 15

On to step 4:
15 can be fit into 40 2 times, resulting in a remainder of 10.
Put 2 as the next digit of the answer. 
Result so far: 292.0
Deduct 30 from 40 and we're left with 10.
Append the next digit (6) from the dividend to 10 and continue with: 106 / 15

On to step 5:
106 divided by 15 is 7 with a remainder of 1.
Record the quotient 7 as the next digit in the result. 
Result so far: 2927.0
Subtracting 105 from 106 leaves us with 1.
Grab the next digit (1) from the dividend, add it to 1, then carry on: 11 / 15

Step 6:
15 goes into 11 0 times with a remainder of 11.
The number 0 becomes the next digit in our result. 
Result so far: 29270.0
The remainder is 11 after subtracting 0 from 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 7:
If we divide 110 by 15, we get 7 and a remainder of 5.
The next digit of our result is 7. 
Result so far: 29270.7
If we subtract 105 from 110, 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.

Moving on to step 8:
50 divided by 15 is 3 with a remainder of 5.
Put 3 as the next digit of the answer. 
Result so far: 29270.73
Deduct 45 from 50 and we're left 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.

On to step 9:
The number 15 fits into 50 3 times, leaving a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 29270.733
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.

In conclusion, the division gives 29270.733 with a balance of 0.0005.