642029 ÷ 2 
We want to figure out the number of times 642029 can be divided by 2.

On to step 1:
2 can be fit into 6 3 times, resulting in a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtract 6 from 6 to get 0.
Take the next digit (4) from the dividend and append it to 0, then repeat: 4 / 2

Step 2:
2 goes into 4 2 times with a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 32.0
Subtract 4 from 4 to get 0.
Fetch the next digit (2) from the dividend, attach it to 0 and continue: 2 / 2

Moving on to step 3:
2 can be fit into 2 1 times, resulting in a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 321.0
If we subtract 2 from 2, we get 0.
Take the next digit (0) from the dividend and append it to 0, then repeat: 0 / 2

Going ahead to step 4:
0 divided by 2 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 3210.0
Deduct 0 from 0 and we're left with 0.
Grab the next digit (2) from the dividend, add it to 0, then carry on: 2 / 2

On to step 5:
2 goes into 2 1 times with a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 32101.0
Subtracting 2 from 2 leaves us with 0.
Append the next digit (9) from the dividend to 0 and continue with: 9 / 2

Moving on to step 6:
If we divide 9 by 2, we get 4 and a remainder of 1.
Use 4 as the next digit of our solution. 
Result so far: 321014.0
Subtracting 8 from 9 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 7:
2 goes into 10 5 times with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 321014.5
If we subtract 10 from 10, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 8:
When dividing 0 by 2, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 321014.5
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 9:
The number 2 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 321014.5
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 321014.5, with a leftover of 0.0.