400910 ÷ 17 
We want to figure out the number of times 400910 can be divided by 17.

On to step 1:
The number 17 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 17

Let's proceed to step 2:
17 goes into 40 2 times with a remainder of 6.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
The remainder is 6 after subtracting 34 from 40.
Bring next digit (0) of the dividend behind the 6 and repeat the process: 60 / 17

Step 3:
17 goes into 60 3 times with a remainder of 9.
Use 3 as the next digit of our solution. 
Result so far: 23.0
If we take 51 away from 60, we end up with 9.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 17

Going ahead to step 4:
17 can be fit into 99 5 times, resulting in a remainder of 14.
Write down 5 as next digit of the result. 
Result so far: 235.0
Subtracting 85 from 99 leaves us with 14.
Append the next digit (1) from the dividend to 14 and continue with: 141 / 17

Let's proceed to step 5:
17 can be fit into 141 8 times, resulting in a remainder of 5.
Record the quotient 8 as the next digit in the result. 
Result so far: 2358.0
Subtracting 136 from 141 leaves us with 5.
Bring next digit (0) of the dividend behind the 5 and repeat the process: 50 / 17

Advancing to step 6:
17 goes into 50 2 times with a remainder of 16.
Use 2 as the next digit of our solution. 
Result so far: 23582.0
Subtracting 34 from 50 leaves us 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.

On to step 7:
17 goes into 160 9 times with a remainder of 7.
Use 9 as the next digit of our solution. 
Result so far: 23582.9
Deduct 153 from 160 and we're left 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.

Let's proceed to step 8:
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: 23582.94
If we subtract 68 from 70, we 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.

On to step 9:
When dividing 20 by 17, we get 1 with a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 23582.941
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.

Going ahead to step 10:
The number 17 fits into 30 1 times, leaving a remainder of 13.
The next digit of our result is 1. 
Result so far: 23582.9411
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.

After the division, we end up with 23582.9411 and a remainder of 0.00013.