396403 ÷ 17 
We want to divide 396403 by 17.

On to step 1:
If we divide 3 by 17, we get 0 and a remainder of 3.
The next digit of our result is 0. 
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 / 17

Going ahead to step 2:
17 can be fit into 39 2 times, resulting in a remainder of 5.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 34 from 39 and we're left with 5.
Include the next digit (6) from the dividend after 5, then repeat: 56 / 17

Let's proceed to step 3:
17 goes into 56 3 times with a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 23.0
If we take 51 away from 56, we end up with 5.
Include the next digit (4) from the dividend after 5, then repeat: 54 / 17

Going ahead to step 4:
54 divided by 17 is 3 with a remainder of 3.
The next digit of our result is 3. 
Result so far: 233.0
If we take 51 away from 54, we end up with 3.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 17

Step 5:
17 goes into 30 1 times with a remainder of 13.
The number 1 becomes the next digit in our result. 
Result so far: 2331.0
If we subtract 17 from 30, we get 13.
Grab the next digit (3) from the dividend, add it to 13, then carry on: 133 / 17

Advancing to step 6:
17 goes into 133 7 times with a remainder of 14.
Use 7 as the next digit of our solution. 
Result so far: 23317.0
If we take 119 away from 133, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 7:
17 can be fit into 140 8 times, resulting in a remainder of 4.
The next digit of our result is 8. 
Result so far: 23317.8
Deduct 136 from 140 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.

Going ahead to step 8:
40 divided by 17 is 2 with a remainder of 6.
The number 2 becomes the next digit in our result. 
Result so far: 23317.82
The remainder is 6 after subtracting 34 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 9:
17 goes into 60 3 times with a remainder of 9.
Use 3 as the next digit of our solution. 
Result so far: 23317.823
Subtract 51 from 60 to 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.

Let's proceed to step 10:
17 can be fit into 90 5 times, resulting in a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 23317.8235
Subtract 85 from 90 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 11:
50 divided by 17 is 2 with a remainder of 16.
Use 2 as the next digit of our solution. 
Result so far: 23317.82352
If we subtract 34 from 50, we 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.

Going ahead to step 12:
The number 17 fits into 160 9 times, leaving a remainder of 7.
Record the quotient 9 as the next digit in the result. 
Result so far: 23317.823529
The remainder is 7 after subtracting 153 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 13:
17 goes into 70 4 times with a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 23317.8235294
Deduct 68 from 70 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 14:
20 divided by 17 is 1 with a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 23317.82352941
Subtracting 17 from 20 leaves us 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.

The final outcome is 23317.82352941, with a leftover of 3e-09.