We look at the division of 15039201 by 909 
We want to divide 15039201 by 909.

Let's proceed to step 1:
909 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 909

Advancing to step 2:
The number 909 fits into 15 0 times, leaving a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Include the next digit (0) from the dividend after 15, then repeat: 150 / 909

Step 3:
The number 909 fits into 150 0 times, leaving a remainder of 150.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 150, we get 150.
Bring next digit (3) of the dividend behind the 150 and repeat the process: 1503 / 909

Moving on to step 4:
When dividing 1503 by 909, we get 1 with a remainder of 594.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 909 from 1503 to get 594.
Include the next digit (9) from the dividend after 594, then repeat: 5949 / 909

Going ahead to step 5:
When dividing 5949 by 909, we get 6 with a remainder of 495.
Write down 6 as next digit of the result. 
Result so far: 16.0
Deduct 5454 from 5949 and we're left with 495.
Take the next digit (2) from the dividend and append it to 495, then repeat: 4952 / 909

Going ahead to step 6:
909 goes into 4952 5 times with a remainder of 407.
Write down 5 as next digit of the result. 
Result so far: 165.0
Deduct 4545 from 4952 and we're left with 407.
Append the next digit (0) from the dividend to 407 and continue with: 4070 / 909

Going ahead to step 7:
909 can be fit into 4070 4 times, resulting in a remainder of 434.
The next digit of our result is 4. 
Result so far: 1654.0
If we take 3636 away from 4070, we end up with 434.
Bring next digit (1) of the dividend behind the 434 and repeat the process: 4341 / 909

On to step 8:
The number 909 fits into 4341 4 times, leaving a remainder of 705.
The number 4 becomes the next digit in our result. 
Result so far: 16544.0
Deduct 3636 from 4341 and we're left with 705.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7050, and continue the process.

Advancing to step 9:
909 goes into 7050 7 times with a remainder of 687.
Write down 7 as next digit of the result. 
Result so far: 16544.7
Subtract 6363 from 7050 to get 687.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6870, and continue the process.

Step 10:
909 can be fit into 6870 7 times, resulting in a remainder of 507.
Record the quotient 7 as the next digit in the result. 
Result so far: 16544.77
Subtracting 6363 from 6870 leaves us with 507.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5070, and continue the process.

The quotient of the division is 16544.77, and the remainder is 0.507.