We divide 12455646 by 878
We're looking to find how many times 878 goes into 12455646.

Step 1:
If we divide 1 by 878, we get 0 and a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 878

Going ahead to step 2:
878 goes into 12 0 times with a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Take the next digit (4) from the dividend and append it to 12, then repeat: 124 / 878

Step 3:
The number 878 fits into 124 0 times, leaving a remainder of 124.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 124 and we're left with 124.
Fetch the next digit (5) from the dividend, attach it to 124 and continue: 1245 / 878

On to step 4:
878 can be fit into 1245 1 times, resulting in a remainder of 367.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 367 after subtracting 878 from 1245.
Append the next digit (5) from the dividend to 367 and continue with: 3675 / 878

On to step 5:
The number 878 fits into 3675 4 times, leaving a remainder of 163.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
If we take 3512 away from 3675, we end up with 163.
Take the next digit (6) from the dividend and append it to 163, then repeat: 1636 / 878

Advancing to step 6:
The number 878 fits into 1636 1 times, leaving a remainder of 758.
The number 1 becomes the next digit in our result. 
Result so far: 141.0
If we subtract 878 from 1636, we get 758.
Grab the next digit (4) from the dividend, add it to 758, then carry on: 7584 / 878

Going ahead to step 7:
878 can be fit into 7584 8 times, resulting in a remainder of 560.
The next digit of our result is 8. 
Result so far: 1418.0
If we take 7024 away from 7584, we end up with 560.
Fetch the next digit (6) from the dividend, attach it to 560 and continue: 5606 / 878

On to step 8:
5606 divided by 878 is 6 with a remainder of 338.
Put 6 as the next digit of the answer. 
Result so far: 14186.0
If we subtract 5268 from 5606, we get 338.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3380, and continue the process.

Moving on to step 9:
878 can be fit into 3380 3 times, resulting in a remainder of 746.
Put 3 as the next digit of the answer. 
Result so far: 14186.3
Deduct 2634 from 3380 and we're left with 746.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7460, and continue the process.

On to step 10:
If we divide 7460 by 878, we get 8 and a remainder of 436.
Put 8 as the next digit of the answer. 
Result so far: 14186.38
The remainder is 436 after subtracting 7024 from 7460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4360, and continue the process.

Moving on to step 11:
878 can be fit into 4360 4 times, resulting in a remainder of 848.
The number 4 becomes the next digit in our result. 
Result so far: 14186.384
If we subtract 3512 from 4360, we get 848.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8480, and continue the process.

On to step 12:
878 can be fit into 8480 9 times, resulting in a remainder of 578.
Use 9 as the next digit of our solution. 
Result so far: 14186.3849
Subtracting 7902 from 8480 leaves us with 578.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5780, and continue the process.

Step 13:
878 goes into 5780 6 times with a remainder of 512.
Put 6 as the next digit of the answer. 
Result so far: 14186.38496
The remainder is 512 after subtracting 5268 from 5780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

Let's proceed to step 14:
5120 divided by 878 is 5 with a remainder of 730.
Record the quotient 5 as the next digit in the result. 
Result so far: 14186.384965
The remainder is 730 after subtracting 4390 from 5120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7300, and continue the process.

Step 15:
878 goes into 7300 8 times with a remainder of 276.
The number 8 becomes the next digit in our result. 
Result so far: 14186.3849658
If we take 7024 away from 7300, we end up with 276.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2760, and continue the process.

On to step 16:
878 can be fit into 2760 3 times, resulting in a remainder of 126.
Put 3 as the next digit of the answer. 
Result so far: 14186.38496583
The remainder is 126 after subtracting 2634 from 2760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

The final outcome is 14186.38496583, with a leftover of 1.26e-07.