We're dividing 398570 by 17 
We want to figure out the number of times 398570 can be divided by 17.

On to step 1:
When dividing 3 by 17, we get 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 17

Going ahead to step 2:
If we divide 39 by 17, we get 2 and a remainder of 5.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtracting 34 from 39 leaves us with 5.
Grab the next digit (8) from the dividend, add it to 5, then carry on: 58 / 17

Moving on to step 3:
When dividing 58 by 17, we get 3 with a remainder of 7.
Write down 3 as next digit of the result. 
Result so far: 23.0
Subtracting 51 from 58 leaves us with 7.
Fetch the next digit (5) from the dividend, attach it to 7 and continue: 75 / 17

Let's proceed to step 4:
17 can be fit into 75 4 times, resulting in a remainder of 7.
Put 4 as the next digit of the answer. 
Result so far: 234.0
Subtracting 68 from 75 leaves us with 7.
Include the next digit (7) from the dividend after 7, then repeat: 77 / 17

Moving on to step 5:
77 divided by 17 is 4 with a remainder of 9.
Use 4 as the next digit of our solution. 
Result so far: 2344.0
The remainder is 9 after subtracting 68 from 77.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 17

Going ahead to step 6:
When dividing 90 by 17, we get 5 with a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 23445.0
The remainder is 5 after subtracting 85 from 90.
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:
17 goes into 50 2 times with a remainder of 16.
Use 2 as the next digit of our solution. 
Result so far: 23445.2
Subtract 34 from 50 to 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.

Let's proceed to step 8:
17 goes into 160 9 times with a remainder of 7.
Record the quotient 9 as the next digit in the result. 
Result so far: 23445.29
Subtract 153 from 160 to get 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 9:
When dividing 70 by 17, we get 4 with a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 23445.294
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.

Let's proceed to step 10:
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: 23445.2941
Subtract 17 from 20 to get 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:
17 goes into 30 1 times with a remainder of 13.
Use 1 as the next digit of our solution. 
Result so far: 23445.29411
The remainder is 13 after subtracting 17 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Our division results in 23445.29411 with a remaining 1.3e-05.