343690 ÷ 17 
Let's see how many times 17 fits into 343690.

Moving on to step 1:
If we divide 3 by 17, we get 0 and a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Include the next digit (4) from the dividend after 3, then repeat: 34 / 17

Moving on to step 2:
34 divided by 17 is 2 with a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtract 34 from 34 to get 0.
Append the next digit (3) from the dividend to 0 and continue with: 3 / 17

On to step 3:
The number 17 fits into 3 0 times, leaving a remainder of 3.
The next digit of our result is 0. 
Result so far: 20.0
Subtract 0 from 3 to get 3.
Bring next digit (6) of the dividend behind the 3 and repeat the process: 36 / 17

On to step 4:
If we divide 36 by 17, we get 2 and a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 202.0
The remainder is 2 after subtracting 34 from 36.
Grab the next digit (9) from the dividend, add it to 2, then carry on: 29 / 17

Going ahead to step 5:
17 can be fit into 29 1 times, resulting in a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 2021.0
Subtract 17 from 29 to get 12.
Bring next digit (0) of the dividend behind the 12 and repeat the process: 120 / 17

Step 6:
The number 17 fits into 120 7 times, leaving a remainder of 1.
The next digit of our result is 7. 
Result so far: 20217.0
Subtract 119 from 120 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 7:
10 divided by 17 is 0 with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 20217.0
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 8:
The number 17 fits into 100 5 times, leaving a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 20217.05
Subtracting 85 from 100 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 9:
17 can be fit into 150 8 times, resulting in a remainder of 14.
Put 8 as the next digit of the answer. 
Result so far: 20217.058
The remainder is 14 after subtracting 136 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 10:
When dividing 140 by 17, we get 8 with a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 20217.0588
If we subtract 136 from 140, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

After the division, we end up with 20217.0588 and a remainder of 4e-05.