We look at the division of 15109971 by 787 
Let's see how many times 787 fits into 15109971.

Moving on to step 1:
1 divided by 787 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 787

Step 2:
15 divided by 787 is 0 with a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 15 leaves us with 15.
Fetch the next digit (1) from the dividend, attach it to 15 and continue: 151 / 787

Let's proceed to step 3:
787 goes into 151 0 times with a remainder of 151.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 151 to get 151.
Include the next digit (0) from the dividend after 151, then repeat: 1510 / 787

Let's proceed to step 4:
If we divide 1510 by 787, we get 1 and a remainder of 723.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 723 after subtracting 787 from 1510.
Fetch the next digit (9) from the dividend, attach it to 723 and continue: 7239 / 787

Going ahead to step 5:
7239 divided by 787 is 9 with a remainder of 156.
Put 9 as the next digit of the answer. 
Result so far: 19.0
Subtracting 7083 from 7239 leaves us with 156.
Append the next digit (9) from the dividend to 156 and continue with: 1569 / 787

Step 6:
The number 787 fits into 1569 1 times, leaving a remainder of 782.
Put 1 as the next digit of the answer. 
Result so far: 191.0
Deduct 787 from 1569 and we're left with 782.
Bring next digit (7) of the dividend behind the 782 and repeat the process: 7827 / 787

Let's proceed to step 7:
787 can be fit into 7827 9 times, resulting in a remainder of 744.
Write down 9 as next digit of the result. 
Result so far: 1919.0
Subtract 7083 from 7827 to get 744.
Bring next digit (1) of the dividend behind the 744 and repeat the process: 7441 / 787

Let's proceed to step 8:
The number 787 fits into 7441 9 times, leaving a remainder of 358.
Write down 9 as next digit of the result. 
Result so far: 19199.0
Subtracting 7083 from 7441 leaves us with 358.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3580, and continue the process.

Let's proceed to step 9:
When dividing 3580 by 787, we get 4 with a remainder of 432.
Use 4 as the next digit of our solution. 
Result so far: 19199.4
Deduct 3148 from 3580 and we're left with 432.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4320, and continue the process.

On to step 10:
When dividing 4320 by 787, we get 5 with a remainder of 385.
The number 5 becomes the next digit in our result. 
Result so far: 19199.45
Deduct 3935 from 4320 and we're left with 385.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3850, and continue the process.

Moving on to step 11:
3850 divided by 787 is 4 with a remainder of 702.
Put 4 as the next digit of the answer. 
Result so far: 19199.454
If we take 3148 away from 3850, we end up with 702.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7020, and continue the process.

Going ahead to step 12:
When dividing 7020 by 787, we get 8 with a remainder of 724.
Record the quotient 8 as the next digit in the result. 
Result so far: 19199.4548
The remainder is 724 after subtracting 6296 from 7020.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7240, and continue the process.

Going ahead to step 13:
When dividing 7240 by 787, we get 9 with a remainder of 157.
The next digit of our result is 9. 
Result so far: 19199.45489
The remainder is 157 after subtracting 7083 from 7240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

On to step 14:
The number 787 fits into 1570 1 times, leaving a remainder of 783.
The number 1 becomes the next digit in our result. 
Result so far: 19199.454891
Deduct 787 from 1570 and we're left with 783.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7830, and continue the process.

Step 15:
787 goes into 7830 9 times with a remainder of 747.
Put 9 as the next digit of the answer. 
Result so far: 19199.4548919
Deduct 7083 from 7830 and we're left with 747.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7470, and continue the process.

Moving on to step 16:
If we divide 7470 by 787, we get 9 and a remainder of 387.
Use 9 as the next digit of our solution. 
Result so far: 19199.45489199
If we take 7083 away from 7470, we end up with 387.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3870, and continue the process.

Our division results in 19199.45489199 with a remaining 3.87e-07.