We're dividing 840629 by 2 
Our goal is to divide 840629 by 2.

Step 1:
When dividing 8 by 2, we get 4 with a remainder of 0.
The next digit of our result is 4. 
Result so far: 4.0
Deduct 8 from 8 and we're left with 0.
Append the next digit (4) from the dividend to 0 and continue with: 4 / 2

Step 2:
The number 2 fits into 4 2 times, leaving a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 42.0
Deduct 4 from 4 and we're left with 0.
Fetch the next digit (0) from the dividend, attach it to 0 and continue: 0 / 2

Advancing to step 3:
If we divide 0 by 2, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 420.0
Subtract 0 from 0 to get 0.
Take the next digit (6) from the dividend and append it to 0, then repeat: 6 / 2

Moving on to step 4:
2 can be fit into 6 3 times, resulting in a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 4203.0
Deduct 6 from 6 and we're left with 0.
Bring next digit (2) of the dividend behind the 0 and repeat the process: 2 / 2

Let's proceed to step 5:
2 divided by 2 is 1 with a remainder of 0.
The next digit of our result is 1. 
Result so far: 42031.0
The remainder is 0 after subtracting 2 from 2.
Include the next digit (9) from the dividend after 0, then repeat: 9 / 2

Let's proceed to step 6:
2 goes into 9 4 times with a remainder of 1.
Use 4 as the next digit of our solution. 
Result so far: 420314.0
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.

Moving on to step 7:
2 can be fit into 10 5 times, resulting in a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 420314.5
Subtracting 10 from 10 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 8:
When dividing 0 by 2, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 420314.5
Subtract 0 from 0 to 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.

On to step 9:
2 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 420314.5
Subtract 0 from 0 to 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.

Our division results in 420314.5 with a remaining 0.0.