Let's divide 15587478 by 879
We want to divide 15587478 by 879.

On to step 1:
When dividing 1 by 879, we get 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 879

Advancing to step 2:
879 can be fit into 15 0 times, resulting in a remainder of 15.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 15, we get 15.
Bring next digit (5) of the dividend behind the 15 and repeat the process: 155 / 879

Going ahead to step 3:
879 can be fit into 155 0 times, resulting in a remainder of 155.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 155 leaves us with 155.
Take the next digit (8) from the dividend and append it to 155, then repeat: 1558 / 879

Moving on to step 4:
The number 879 fits into 1558 1 times, leaving a remainder of 679.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 879 from 1558 leaves us with 679.
Grab the next digit (7) from the dividend, add it to 679, then carry on: 6797 / 879

Step 5:
The number 879 fits into 6797 7 times, leaving a remainder of 644.
Put 7 as the next digit of the answer. 
Result so far: 17.0
The remainder is 644 after subtracting 6153 from 6797.
Grab the next digit (4) from the dividend, add it to 644, then carry on: 6444 / 879

On to step 6:
879 goes into 6444 7 times with a remainder of 291.
The number 7 becomes the next digit in our result. 
Result so far: 177.0
Deduct 6153 from 6444 and we're left with 291.
Take the next digit (7) from the dividend and append it to 291, then repeat: 2917 / 879

Step 7:
879 goes into 2917 3 times with a remainder of 280.
Write down 3 as next digit of the result. 
Result so far: 1773.0
The remainder is 280 after subtracting 2637 from 2917.
Include the next digit (8) from the dividend after 280, then repeat: 2808 / 879

On to step 8:
If we divide 2808 by 879, we get 3 and a remainder of 171.
Write down 3 as next digit of the result. 
Result so far: 17733.0
Deduct 2637 from 2808 and we're left with 171.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1710, and continue the process.

Step 9:
If we divide 1710 by 879, we get 1 and a remainder of 831.
Write down 1 as next digit of the result. 
Result so far: 17733.1
Subtract 879 from 1710 to get 831.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8310, and continue the process.

Moving on to step 10:
If we divide 8310 by 879, we get 9 and a remainder of 399.
Record the quotient 9 as the next digit in the result. 
Result so far: 17733.19
If we subtract 7911 from 8310, we get 399.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3990, and continue the process.

Let's proceed to step 11:
3990 divided by 879 is 4 with a remainder of 474.
Write down 4 as next digit of the result. 
Result so far: 17733.194
Subtracting 3516 from 3990 leaves us with 474.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4740, and continue the process.

Moving on to step 12:
The number 879 fits into 4740 5 times, leaving a remainder of 345.
Write down 5 as next digit of the result. 
Result so far: 17733.1945
If we take 4395 away from 4740, we end up with 345.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3450, and continue the process.

Advancing to step 13:
879 can be fit into 3450 3 times, resulting in a remainder of 813.
Write down 3 as next digit of the result. 
Result so far: 17733.19453
The remainder is 813 after subtracting 2637 from 3450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8130, and continue the process.

Going ahead to step 14:
The number 879 fits into 8130 9 times, leaving a remainder of 219.
Use 9 as the next digit of our solution. 
Result so far: 17733.194539
Deduct 7911 from 8130 and we're left with 219.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2190, and continue the process.

Advancing to step 15:
879 can be fit into 2190 2 times, resulting in a remainder of 432.
Use 2 as the next digit of our solution. 
Result so far: 17733.1945392
Subtracting 1758 from 2190 leaves us 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.

Moving on to step 16:
If we divide 4320 by 879, we get 4 and a remainder of 804.
Record the quotient 4 as the next digit in the result. 
Result so far: 17733.19453924
If we subtract 3516 from 4320, we get 804.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8040, and continue the process.

The final outcome is 17733.19453924, with a leftover of 8.04e-07.