We're dividing 12495543 by 886 
We want to divide 12495543 by 886.

Going ahead to step 1:
When dividing 1 by 886, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 886

Step 2:
If we divide 12 by 886, we get 0 and a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 12 leaves us with 12.
Fetch the next digit (4) from the dividend, attach it to 12 and continue: 124 / 886

Let's proceed to step 3:
124 divided by 886 is 0 with a remainder of 124.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 124 and we're left with 124.
Fetch the next digit (9) from the dividend, attach it to 124 and continue: 1249 / 886

Advancing to step 4:
If we divide 1249 by 886, we get 1 and a remainder of 363.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 886 from 1249 and we're left with 363.
Take the next digit (5) from the dividend and append it to 363, then repeat: 3635 / 886

Advancing to step 5:
The number 886 fits into 3635 4 times, leaving a remainder of 91.
Use 4 as the next digit of our solution. 
Result so far: 14.0
Deduct 3544 from 3635 and we're left with 91.
Bring next digit (5) of the dividend behind the 91 and repeat the process: 915 / 886

Going ahead to step 6:
When dividing 915 by 886, we get 1 with a remainder of 29.
Write down 1 as next digit of the result. 
Result so far: 141.0
Subtracting 886 from 915 leaves us with 29.
Append the next digit (4) from the dividend to 29 and continue with: 294 / 886

Step 7:
The number 886 fits into 294 0 times, leaving a remainder of 294.
Record the quotient 0 as the next digit in the result. 
Result so far: 1410.0
If we take 0 away from 294, we end up with 294.
Take the next digit (3) from the dividend and append it to 294, then repeat: 2943 / 886

On to step 8:
886 can be fit into 2943 3 times, resulting in a remainder of 285.
Write down 3 as next digit of the result. 
Result so far: 14103.0
Subtracting 2658 from 2943 leaves us with 285.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2850, and continue the process.

Step 9:
886 can be fit into 2850 3 times, resulting in a remainder of 192.
Use 3 as the next digit of our solution. 
Result so far: 14103.3
Subtract 2658 from 2850 to get 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

On to step 10:
1920 divided by 886 is 2 with a remainder of 148.
The number 2 becomes the next digit in our result. 
Result so far: 14103.32
If we take 1772 away from 1920, we end up with 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Let's proceed to step 11:
If we divide 1480 by 886, we get 1 and a remainder of 594.
The number 1 becomes the next digit in our result. 
Result so far: 14103.321
Subtracting 886 from 1480 leaves us with 594.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5940, and continue the process.

Step 12:
5940 divided by 886 is 6 with a remainder of 624.
Use 6 as the next digit of our solution. 
Result so far: 14103.3216
Deduct 5316 from 5940 and we're left with 624.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6240, and continue the process.

Advancing to step 13:
If we divide 6240 by 886, we get 7 and a remainder of 38.
Use 7 as the next digit of our solution. 
Result so far: 14103.32167
Deduct 6202 from 6240 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 14:
380 divided by 886 is 0 with a remainder of 380.
The next digit of our result is 0. 
Result so far: 14103.32167
Subtract 0 from 380 to get 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

On to step 15:
3800 divided by 886 is 4 with a remainder of 256.
Put 4 as the next digit of the answer. 
Result so far: 14103.3216704
Subtract 3544 from 3800 to get 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Going ahead to step 16:
2560 divided by 886 is 2 with a remainder of 788.
Put 2 as the next digit of the answer. 
Result so far: 14103.32167042
Subtracting 1772 from 2560 leaves us with 788.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7880, and continue the process.

The final result is 14103.32167042 with a remainder of 7.88e-07.