We're dividing 13666017 by 839 
We want to divide 13666017 by 839.

Going ahead to step 1:
839 goes into 1 0 times 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.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 839

Moving on to step 2:
839 goes into 13 0 times with a remainder of 13.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 13 and we're left with 13.
Take the next digit (6) from the dividend and append it to 13, then repeat: 136 / 839

On to step 3:
The number 839 fits into 136 0 times, leaving a remainder of 136.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 136 leaves us with 136.
Append the next digit (6) from the dividend to 136 and continue with: 1366 / 839

Going ahead to step 4:
If we divide 1366 by 839, we get 1 and a remainder of 527.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 527 after subtracting 839 from 1366.
Take the next digit (6) from the dividend and append it to 527, then repeat: 5276 / 839

Step 5:
5276 divided by 839 is 6 with a remainder of 242.
Use 6 as the next digit of our solution. 
Result so far: 16.0
If we subtract 5034 from 5276, we get 242.
Fetch the next digit (0) from the dividend, attach it to 242 and continue: 2420 / 839

Step 6:
When dividing 2420 by 839, we get 2 with a remainder of 742.
Put 2 as the next digit of the answer. 
Result so far: 162.0
Subtracting 1678 from 2420 leaves us with 742.
Bring next digit (1) of the dividend behind the 742 and repeat the process: 7421 / 839

On to step 7:
If we divide 7421 by 839, we get 8 and a remainder of 709.
The number 8 becomes the next digit in our result. 
Result so far: 1628.0
If we subtract 6712 from 7421, we get 709.
Take the next digit (7) from the dividend and append it to 709, then repeat: 7097 / 839

Going ahead to step 8:
When dividing 7097 by 839, we get 8 with a remainder of 385.
Write down 8 as next digit of the result. 
Result so far: 16288.0
If we subtract 6712 from 7097, we get 385.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3850, and continue the process.

On to step 9:
The number 839 fits into 3850 4 times, leaving a remainder of 494.
Record the quotient 4 as the next digit in the result. 
Result so far: 16288.4
Subtracting 3356 from 3850 leaves us with 494.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4940, and continue the process.

Step 10:
839 can be fit into 4940 5 times, resulting in a remainder of 745.
The number 5 becomes the next digit in our result. 
Result so far: 16288.45
The remainder is 745 after subtracting 4195 from 4940.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7450, and continue the process.

Step 11:
When dividing 7450 by 839, we get 8 with a remainder of 738.
Put 8 as the next digit of the answer. 
Result so far: 16288.458
If we subtract 6712 from 7450, we get 738.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7380, and continue the process.

Advancing to step 12:
If we divide 7380 by 839, we get 8 and a remainder of 668.
The next digit of our result is 8. 
Result so far: 16288.4588
Subtracting 6712 from 7380 leaves us with 668.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6680, and continue the process.

After the division, we end up with 16288.4588 and a remainder of 0.00668.