405309 divided by 17 
We're looking to find how many times 17 goes into 405309.

Advancing to step 1:
When dividing 4 by 17, we get 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Take the next digit (0) from the dividend and append it to 4, then repeat: 40 / 17

Let's proceed to step 2:
The number 17 fits into 40 2 times, leaving a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we subtract 34 from 40, we get 6.
Append the next digit (5) from the dividend to 6 and continue with: 65 / 17

On to step 3:
If we divide 65 by 17, we get 3 and a remainder of 14.
Write down 3 as next digit of the result. 
Result so far: 23.0
If we take 51 away from 65, we end up with 14.
Grab the next digit (3) from the dividend, add it to 14, then carry on: 143 / 17

Going ahead to step 4:
When dividing 143 by 17, we get 8 with a remainder of 7.
Record the quotient 8 as the next digit in the result. 
Result so far: 238.0
If we take 136 away from 143, we end up with 7.
Fetch the next digit (0) from the dividend, attach it to 7 and continue: 70 / 17

Step 5:
When dividing 70 by 17, we get 4 with a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 2384.0
Subtract 68 from 70 to get 2.
Include the next digit (9) from the dividend after 2, then repeat: 29 / 17

Let's proceed to step 6:
29 divided by 17 is 1 with a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 23841.0
Subtract 17 from 29 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 7:
17 goes into 120 7 times with a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 23841.7
Subtracting 119 from 120 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 8:
17 goes into 10 0 times with a remainder of 10.
The next digit of our result is 0. 
Result so far: 23841.7
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.

On to step 9:
100 divided by 17 is 5 with a remainder of 15.
The next digit of our result is 5. 
Result so far: 23841.705
Deduct 85 from 100 and we're left 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.

Going ahead to step 10:
If we divide 150 by 17, we get 8 and a remainder of 14.
Record the quotient 8 as the next digit in the result. 
Result so far: 23841.7058
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.

On to step 11:
When dividing 140 by 17, we get 8 with a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 23841.70588
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.

The quotient of the division is 23841.70588, and the remainder is 4e-06.