399363 ÷ 34 
Let's see how many times 34 fits into 399363.

Let's proceed to step 1:
34 can be fit into 3 0 times, resulting in a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 34

Advancing to step 2:
34 goes into 39 1 times with a remainder of 5.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 34 from 39 and we're left with 5.
Include the next digit (9) from the dividend after 5, then repeat: 59 / 34

Advancing to step 3:
If we divide 59 by 34, we get 1 and a remainder of 25.
Write down 1 as next digit of the result. 
Result so far: 11.0
The remainder is 25 after subtracting 34 from 59.
Bring next digit (3) of the dividend behind the 25 and repeat the process: 253 / 34

Going ahead to step 4:
34 goes into 253 7 times with a remainder of 15.
Write down 7 as next digit of the result. 
Result so far: 117.0
The remainder is 15 after subtracting 238 from 253.
Fetch the next digit (6) from the dividend, attach it to 15 and continue: 156 / 34

On to step 5:
34 goes into 156 4 times with a remainder of 20.
Record the quotient 4 as the next digit in the result. 
Result so far: 1174.0
Subtracting 136 from 156 leaves us with 20.
Bring next digit (3) of the dividend behind the 20 and repeat the process: 203 / 34

On to step 6:
If we divide 203 by 34, we get 5 and a remainder of 33.
The next digit of our result is 5. 
Result so far: 11745.0
Subtract 170 from 203 to get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Let's proceed to step 7:
330 divided by 34 is 9 with a remainder of 24.
The number 9 becomes the next digit in our result. 
Result so far: 11745.9
If we take 306 away from 330, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 8:
34 can be fit into 240 7 times, resulting in a remainder of 2.
The number 7 becomes the next digit in our result. 
Result so far: 11745.97
Subtract 238 from 240 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 9:
If we divide 20 by 34, we get 0 and a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 11745.97
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 10:
200 divided by 34 is 5 with a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 11745.9705
Subtract 170 from 200 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.

Let's proceed to step 11:
If we divide 300 by 34, we get 8 and a remainder of 28.
Write down 8 as next digit of the result. 
Result so far: 11745.97058
Subtract 272 from 300 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 12:
34 can be fit into 280 8 times, resulting in a remainder of 8.
Use 8 as the next digit of our solution. 
Result so far: 11745.970588
If we subtract 272 from 280, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

After the division, we end up with 11745.970588 and a remainder of 8e-07.