We're dividing 81423 by 39 
We want to divide 81423 by 39.

Moving on to step 1:
If we divide 8 by 39, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 39

Going ahead to step 2:
If we divide 81 by 39, we get 2 and a remainder of 3.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 3 after subtracting 78 from 81.
Grab the next digit (4) from the dividend, add it to 3, then carry on: 34 / 39

Step 3:
The number 39 fits into 34 0 times, leaving a remainder of 34.
Write down 0 as next digit of the result. 
Result so far: 20.0
The remainder is 34 after subtracting 0 from 34.
Include the next digit (2) from the dividend after 34, then repeat: 342 / 39

Going ahead to step 4:
If we divide 342 by 39, we get 8 and a remainder of 30.
Record the quotient 8 as the next digit in the result. 
Result so far: 208.0
The remainder is 30 after subtracting 312 from 342.
Include the next digit (3) from the dividend after 30, then repeat: 303 / 39

Going ahead to step 5:
When dividing 303 by 39, we get 7 with a remainder of 30.
The number 7 becomes the next digit in our result. 
Result so far: 2087.0
Subtract 273 from 303 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 6:
300 divided by 39 is 7 with a remainder of 27.
Use 7 as the next digit of our solution. 
Result so far: 2087.7
Subtracting 273 from 300 leaves us with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Moving on to step 7:
The number 39 fits into 270 6 times, leaving a remainder of 36.
Put 6 as the next digit of the answer. 
Result so far: 2087.76
The remainder is 36 after subtracting 234 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 8:
39 can be fit into 360 9 times, resulting in a remainder of 9.
The next digit of our result is 9. 
Result so far: 2087.769
If we subtract 351 from 360, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 9:
When dividing 90 by 39, we get 2 with a remainder of 12.
Use 2 as the next digit of our solution. 
Result so far: 2087.7692
If we subtract 78 from 90, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 10:
39 can be fit into 120 3 times, resulting in a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 2087.76923
If we take 117 away from 120, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 11:
39 goes into 30 0 times with a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 2087.76923
If we take 0 away from 30, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 12:
39 goes into 300 7 times with a remainder of 27.
Write down 7 as next digit of the result. 
Result so far: 2087.7692307
The remainder is 27 after subtracting 273 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Moving on to step 13:
The number 39 fits into 270 6 times, leaving a remainder of 36.
The next digit of our result is 6. 
Result so far: 2087.76923076
The remainder is 36 after subtracting 234 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

After the division, we end up with 2087.76923076 and a remainder of 3.6e-08.