We divide 12886253 by 407
We want to divide 12886253 by 407.

Advancing to step 1:
1 divided by 407 is 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 407

Going ahead to step 2:
If we divide 12 by 407, we get 0 and a remainder of 12.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Append the next digit (8) from the dividend to 12 and continue with: 128 / 407

Let's proceed to step 3:
407 goes into 128 0 times with a remainder of 128.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 128 after subtracting 0 from 128.
Bring next digit (8) of the dividend behind the 128 and repeat the process: 1288 / 407

Let's proceed to step 4:
If we divide 1288 by 407, we get 3 and a remainder of 67.
The next digit of our result is 3. 
Result so far: 3.0
If we take 1221 away from 1288, we end up with 67.
Grab the next digit (6) from the dividend, add it to 67, then carry on: 676 / 407

Moving on to step 5:
676 divided by 407 is 1 with a remainder of 269.
The number 1 becomes the next digit in our result. 
Result so far: 31.0
Deduct 407 from 676 and we're left with 269.
Grab the next digit (2) from the dividend, add it to 269, then carry on: 2692 / 407

Going ahead to step 6:
The number 407 fits into 2692 6 times, leaving a remainder of 250.
Use 6 as the next digit of our solution. 
Result so far: 316.0
Deduct 2442 from 2692 and we're left with 250.
Take the next digit (5) from the dividend and append it to 250, then repeat: 2505 / 407

Going ahead to step 7:
The number 407 fits into 2505 6 times, leaving a remainder of 63.
Use 6 as the next digit of our solution. 
Result so far: 3166.0
If we subtract 2442 from 2505, we get 63.
Grab the next digit (3) from the dividend, add it to 63, then carry on: 633 / 407

On to step 8:
407 can be fit into 633 1 times, resulting in a remainder of 226.
The number 1 becomes the next digit in our result. 
Result so far: 31661.0
Subtracting 407 from 633 leaves us with 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

On to step 9:
The number 407 fits into 2260 5 times, leaving a remainder of 225.
Put 5 as the next digit of the answer. 
Result so far: 31661.5
If we take 2035 away from 2260, we end up with 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

Advancing to step 10:
407 goes into 2250 5 times with a remainder of 215.
Put 5 as the next digit of the answer. 
Result so far: 31661.55
If we subtract 2035 from 2250, we get 215.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

After the division, we end up with 31661.55 and a remainder of 0.215.