We're dividing 15124765 by 878 
Let's see how many times 878 fits into 15124765.

Going ahead to step 1:
878 can be fit into 1 0 times, resulting in a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 878

Step 2:
The number 878 fits into 15 0 times, leaving a remainder of 15.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Bring next digit (1) of the dividend behind the 15 and repeat the process: 151 / 878

Step 3:
878 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
Deduct 0 from 151 and we're left with 151.
Append the next digit (2) from the dividend to 151 and continue with: 1512 / 878

Going ahead to step 4:
878 goes into 1512 1 times with a remainder of 634.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 878 away from 1512, we end up with 634.
Fetch the next digit (4) from the dividend, attach it to 634 and continue: 6344 / 878

Advancing to step 5:
When dividing 6344 by 878, we get 7 with a remainder of 198.
Put 7 as the next digit of the answer. 
Result so far: 17.0
Subtract 6146 from 6344 to get 198.
Append the next digit (7) from the dividend to 198 and continue with: 1987 / 878

Let's proceed to step 6:
878 can be fit into 1987 2 times, resulting in a remainder of 231.
The next digit of our result is 2. 
Result so far: 172.0
If we subtract 1756 from 1987, we get 231.
Grab the next digit (6) from the dividend, add it to 231, then carry on: 2316 / 878

Going ahead to step 7:
When dividing 2316 by 878, we get 2 with a remainder of 560.
Write down 2 as next digit of the result. 
Result so far: 1722.0
If we take 1756 away from 2316, we end up with 560.
Append the next digit (5) from the dividend to 560 and continue with: 5605 / 878

Advancing to step 8:
878 goes into 5605 6 times with a remainder of 337.
The number 6 becomes the next digit in our result. 
Result so far: 17226.0
Deduct 5268 from 5605 and we're left with 337.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3370, and continue the process.

Advancing to step 9:
The number 878 fits into 3370 3 times, leaving a remainder of 736.
Use 3 as the next digit of our solution. 
Result so far: 17226.3
Subtract 2634 from 3370 to get 736.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7360, and continue the process.

On to step 10:
7360 divided by 878 is 8 with a remainder of 336.
Put 8 as the next digit of the answer. 
Result so far: 17226.38
If we take 7024 away from 7360, we end up with 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

Moving on to step 11:
878 goes into 3360 3 times with a remainder of 726.
The next digit of our result is 3. 
Result so far: 17226.383
Subtract 2634 from 3360 to get 726.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7260, and continue the process.

Moving on to step 12:
If we divide 7260 by 878, we get 8 and a remainder of 236.
Write down 8 as next digit of the result. 
Result so far: 17226.3838
If we subtract 7024 from 7260, we get 236.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2360, and continue the process.

Going ahead to step 13:
When dividing 2360 by 878, we get 2 with a remainder of 604.
Use 2 as the next digit of our solution. 
Result so far: 17226.38382
If we take 1756 away from 2360, we end up with 604.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6040, and continue the process.

Moving on to step 14:
878 goes into 6040 6 times with a remainder of 772.
Put 6 as the next digit of the answer. 
Result so far: 17226.383826
Deduct 5268 from 6040 and we're left with 772.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7720, and continue the process.

On to step 15:
7720 divided by 878 is 8 with a remainder of 696.
The number 8 becomes the next digit in our result. 
Result so far: 17226.3838268
Deduct 7024 from 7720 and we're left with 696.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6960, and continue the process.

On to step 16:
878 goes into 6960 7 times with a remainder of 814.
Use 7 as the next digit of our solution. 
Result so far: 17226.38382687
The remainder is 814 after subtracting 6146 from 6960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8140, and continue the process.

The final result is 17226.38382687 with a remainder of 8.14e-07.