We look at the division of 43039028 by 15 
We want to figure out the number of times 43039028 can be divided by 15.

Advancing to step 1:
If we divide 4 by 15, we get 0 and a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Grab the next digit (3) from the dividend, add it to 4, then carry on: 43 / 15

Let's proceed to step 2:
The number 15 fits into 43 2 times, leaving a remainder of 13.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
The remainder is 13 after subtracting 30 from 43.
Include the next digit (0) from the dividend after 13, then repeat: 130 / 15

Going ahead to step 3:
15 can be fit into 130 8 times, resulting in a remainder of 10.
The next digit of our result is 8. 
Result so far: 28.0
Subtract 120 from 130 to get 10.
Take the next digit (3) from the dividend and append it to 10, then repeat: 103 / 15

Advancing to step 4:
103 divided by 15 is 6 with a remainder of 13.
Write down 6 as next digit of the result. 
Result so far: 286.0
The remainder is 13 after subtracting 90 from 103.
Bring next digit (9) of the dividend behind the 13 and repeat the process: 139 / 15

On to step 5:
When dividing 139 by 15, we get 9 with a remainder of 4.
Record the quotient 9 as the next digit in the result. 
Result so far: 2869.0
If we subtract 135 from 139, we get 4.
Include the next digit (0) from the dividend after 4, then repeat: 40 / 15

Advancing to step 6:
15 goes into 40 2 times with a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 28692.0
If we subtract 30 from 40, we get 10.
Grab the next digit (2) from the dividend, add it to 10, then carry on: 102 / 15

Advancing to step 7:
15 can be fit into 102 6 times, resulting in a remainder of 12.
The next digit of our result is 6. 
Result so far: 286926.0
Subtracting 90 from 102 leaves us with 12.
Take the next digit (8) from the dividend and append it to 12, then repeat: 128 / 15

On to step 8:
128 divided by 15 is 8 with a remainder of 8.
Write down 8 as next digit of the result. 
Result so far: 2869268.0
Subtracting 120 from 128 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 9:
When dividing 80 by 15, we get 5 with a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 2869268.5
The remainder is 5 after subtracting 75 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 10:
If we divide 50 by 15, we get 3 and a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 2869268.53
Subtracting 45 from 50 leaves us 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.

Step 11:
15 can be fit into 50 3 times, resulting in a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 2869268.533
Subtracting 45 from 50 leaves us 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.

After the division, we end up with 2869268.533 and a remainder of 0.0005.