We look at the division of 209428 by 17 
Our goal is to divide 209428 by 17.

On to step 1:
If we divide 2 by 17, we get 0 and a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Grab the next digit (0) from the dividend, add it to 2, then carry on: 20 / 17

Moving on to step 2:
If we divide 20 by 17, we get 1 and a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 17 away from 20, we end up with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 17

On to step 3:
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: 12.0
If we subtract 34 from 39, we get 5.
Include the next digit (4) from the dividend after 5, then repeat: 54 / 17

Advancing to step 4:
When dividing 54 by 17, we get 3 with a remainder of 3.
The number 3 becomes the next digit in our result. 
Result so far: 123.0
If we take 51 away from 54, we end up with 3.
Include the next digit (2) from the dividend after 3, then repeat: 32 / 17

Advancing to step 5:
17 can be fit into 32 1 times, resulting in a remainder of 15.
Put 1 as the next digit of the answer. 
Result so far: 1231.0
Deduct 17 from 32 and we're left with 15.
Append the next digit (8) from the dividend to 15 and continue with: 158 / 17

Going ahead to step 6:
158 divided by 17 is 9 with a remainder of 5.
Use 9 as the next digit of our solution. 
Result so far: 12319.0
Subtract 153 from 158 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.

Going ahead to step 7:
If we divide 50 by 17, we get 2 and a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 12319.2
If we take 34 away from 50, we end up 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.

Step 8:
17 can be fit into 160 9 times, resulting in a remainder of 7.
The number 9 becomes the next digit in our result. 
Result so far: 12319.29
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.

Let's proceed to step 9:
The number 17 fits into 70 4 times, leaving a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 12319.294
Subtract 68 from 70 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.

Going ahead to step 10:
The number 17 fits into 20 1 times, leaving a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 12319.2941
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.

Moving on to step 11:
The number 17 fits into 30 1 times, leaving a remainder of 13.
The next digit of our result is 1. 
Result so far: 12319.29411
Deduct 17 from 30 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

The final outcome is 12319.29411, with a leftover of 1.3e-05.