642556 divided by 17 
We want to figure out the number of times 642556 can be divided by 17.

Advancing to step 1:
17 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 17

On to step 2:
64 divided by 17 is 3 with a remainder of 13.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtract 51 from 64 to get 13.
Include the next digit (2) from the dividend after 13, then repeat: 132 / 17

Step 3:
If we divide 132 by 17, we get 7 and a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 37.0
Subtracting 119 from 132 leaves us with 13.
Bring next digit (5) of the dividend behind the 13 and repeat the process: 135 / 17

Moving on to step 4:
The number 17 fits into 135 7 times, leaving a remainder of 16.
Put 7 as the next digit of the answer. 
Result so far: 377.0
If we subtract 119 from 135, we get 16.
Include the next digit (5) from the dividend after 16, then repeat: 165 / 17

Going ahead to step 5:
The number 17 fits into 165 9 times, leaving a remainder of 12.
The next digit of our result is 9. 
Result so far: 3779.0
The remainder is 12 after subtracting 153 from 165.
Append the next digit (6) from the dividend to 12 and continue with: 126 / 17

Going ahead to step 6:
17 goes into 126 7 times with a remainder of 7.
The number 7 becomes the next digit in our result. 
Result so far: 37797.0
If we subtract 119 from 126, we 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 7:
When dividing 70 by 17, we get 4 with a remainder of 2.
The next digit of our result is 4. 
Result so far: 37797.4
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.

Going ahead to step 8:
20 divided by 17 is 1 with a remainder of 3.
The next digit of our result is 1. 
Result so far: 37797.41
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.

Let's proceed to step 9:
The number 17 fits into 30 1 times, leaving a remainder of 13.
The next digit of our result is 1. 
Result so far: 37797.411
Deduct 17 from 30 and we're left 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.

Our division results in 37797.411 with a remaining 0.0013.