We're dividing 399262 by 42 
We want to divide 399262 by 42.

On to step 1:
3 divided by 42 is 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 42

Let's proceed to step 2:
If we divide 39 by 42, we get 0 and a remainder of 39.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 39 leaves us with 39.
Include the next digit (9) from the dividend after 39, then repeat: 399 / 42

Let's proceed to step 3:
If we divide 399 by 42, we get 9 and a remainder of 21.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
Subtracting 378 from 399 leaves us with 21.
Append the next digit (2) from the dividend to 21 and continue with: 212 / 42

On to step 4:
The number 42 fits into 212 5 times, leaving a remainder of 2.
Put 5 as the next digit of the answer. 
Result so far: 95.0
If we subtract 210 from 212, we get 2.
Fetch the next digit (6) from the dividend, attach it to 2 and continue: 26 / 42

Step 5:
42 goes into 26 0 times with a remainder of 26.
Put 0 as the next digit of the answer. 
Result so far: 950.0
If we take 0 away from 26, we end up with 26.
Bring next digit (2) of the dividend behind the 26 and repeat the process: 262 / 42

Moving on to step 6:
The number 42 fits into 262 6 times, leaving a remainder of 10.
Write down 6 as next digit of the result. 
Result so far: 9506.0
Subtract 252 from 262 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 7:
When dividing 100 by 42, we get 2 with a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 9506.2
Subtract 84 from 100 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 8:
When dividing 160 by 42, we get 3 with a remainder of 34.
Use 3 as the next digit of our solution. 
Result so far: 9506.23
If we subtract 126 from 160, we get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 9:
When dividing 340 by 42, we get 8 with a remainder of 4.
The next digit of our result is 8. 
Result so far: 9506.238
Deduct 336 from 340 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 10:
The number 42 fits into 40 0 times, leaving a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 9506.238
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 11:
When dividing 400 by 42, we get 9 with a remainder of 22.
Record the quotient 9 as the next digit in the result. 
Result so far: 9506.23809
Subtract 378 from 400 to get 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 12:
When dividing 220 by 42, we get 5 with a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 9506.238095
If we subtract 210 from 220, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 13:
42 goes into 100 2 times with a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 9506.2380952
Subtracting 84 from 100 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.

Going ahead to step 14:
42 goes into 160 3 times with a remainder of 34.
Put 3 as the next digit of the answer. 
Result so far: 9506.23809523
Subtract 126 from 160 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

The final outcome is 9506.23809523, with a leftover of 3.4e-08.