Let's divide 423086 by 17
We want to divide 423086 by 17.

On to step 1:
4 divided by 17 is 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 17

Let's proceed to step 2:
When dividing 42 by 17, we get 2 with a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 34 away from 42, we end up with 8.
Take the next digit (3) from the dividend and append it to 8, then repeat: 83 / 17

On to step 3:
If we divide 83 by 17, we get 4 and a remainder of 15.
Put 4 as the next digit of the answer. 
Result so far: 24.0
Deduct 68 from 83 and we're left with 15.
Grab the next digit (0) from the dividend, add it to 15, then carry on: 150 / 17

Going ahead to step 4:
If we divide 150 by 17, we get 8 and a remainder of 14.
The next digit of our result is 8. 
Result so far: 248.0
If we subtract 136 from 150, we get 14.
Bring next digit (8) of the dividend behind the 14 and repeat the process: 148 / 17

Let's proceed to step 5:
148 divided by 17 is 8 with a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 2488.0
The remainder is 12 after subtracting 136 from 148.
Take the next digit (6) from the dividend and append it to 12, then repeat: 126 / 17

On to step 6:
The number 17 fits into 126 7 times, leaving a remainder of 7.
Put 7 as the next digit of the answer. 
Result so far: 24887.0
If we take 119 away from 126, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 7:
70 divided by 17 is 4 with a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 24887.4
If we take 68 away from 70, we end up 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.

On to step 8:
17 can be fit into 20 1 times, resulting in a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 24887.41
Deduct 17 from 20 and we're left 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.

On to step 9:
30 divided by 17 is 1 with a remainder of 13.
The number 1 becomes the next digit in our result. 
Result so far: 24887.411
Subtracting 17 from 30 leaves us 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 24887.411, with a leftover of 0.0013.