We look at the division of 426643 by 39 
Our goal is to divide 426643 by 39.

Let's proceed to step 1:
When dividing 4 by 39, we get 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 39

Moving on to step 2:
42 divided by 39 is 1 with a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 39 from 42 and we're left with 3.
Append the next digit (6) from the dividend to 3 and continue with: 36 / 39

Step 3:
36 divided by 39 is 0 with a remainder of 36.
Use 0 as the next digit of our solution. 
Result so far: 10.0
Subtract 0 from 36 to get 36.
Bring next digit (6) of the dividend behind the 36 and repeat the process: 366 / 39

Advancing to step 4:
39 goes into 366 9 times with a remainder of 15.
Write down 9 as next digit of the result. 
Result so far: 109.0
Deduct 351 from 366 and we're left with 15.
Include the next digit (4) from the dividend after 15, then repeat: 154 / 39

On to step 5:
39 can be fit into 154 3 times, resulting in a remainder of 37.
The number 3 becomes the next digit in our result. 
Result so far: 1093.0
Subtract 117 from 154 to get 37.
Append the next digit (3) from the dividend to 37 and continue with: 373 / 39

Step 6:
If we divide 373 by 39, we get 9 and a remainder of 22.
Write down 9 as next digit of the result. 
Result so far: 10939.0
If we take 351 away from 373, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 7:
39 can be fit into 220 5 times, resulting in a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 10939.5
The remainder is 25 after subtracting 195 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 8:
39 goes into 250 6 times with a remainder of 16.
Record the quotient 6 as the next digit in the result. 
Result so far: 10939.56
The remainder is 16 after subtracting 234 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 9:
160 divided by 39 is 4 with a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 10939.564
The remainder is 4 after subtracting 156 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 10:
When dividing 40 by 39, we get 1 with a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 10939.5641
Subtracting 39 from 40 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 11:
When dividing 10 by 39, we get 0 with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 10939.5641
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 12:
39 goes into 100 2 times with a remainder of 22.
Use 2 as the next digit of our solution. 
Result so far: 10939.564102
If we take 78 away from 100, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 13:
39 can be fit into 220 5 times, resulting in a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 10939.5641025
Deduct 195 from 220 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 14:
If we divide 250 by 39, we get 6 and a remainder of 16.
Put 6 as the next digit of the answer. 
Result so far: 10939.56410256
Subtracting 234 from 250 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

After the division, we end up with 10939.56410256 and a remainder of 1.6e-08.