620957 ÷ 2 
Our goal is to divide 620957 by 2.

Step 1:
The number 2 fits into 6 3 times, leaving a remainder of 0.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtracting 6 from 6 leaves us with 0.
Take the next digit (2) from the dividend and append it to 0, then repeat: 2 / 2

Going ahead to step 2:
If we divide 2 by 2, we get 1 and a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 31.0
The remainder is 0 after subtracting 2 from 2.
Include the next digit (0) from the dividend after 0, then repeat: 0 / 2

On to step 3:
0 divided by 2 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 310.0
If we take 0 away from 0, we end up with 0.
Append the next digit (9) from the dividend to 0 and continue with: 9 / 2

Moving on to step 4:
When dividing 9 by 2, we get 4 with a remainder of 1.
Record the quotient 4 as the next digit in the result. 
Result so far: 3104.0
Subtract 8 from 9 to get 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 2

Advancing to step 5:
15 divided by 2 is 7 with a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 31047.0
The remainder is 1 after subtracting 14 from 15.
Include the next digit (7) from the dividend after 1, then repeat: 17 / 2

Advancing to step 6:
2 can be fit into 17 8 times, resulting in a remainder of 1.
Put 8 as the next digit of the answer. 
Result so far: 310478.0
If we take 16 away from 17, we end up 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.

Step 7:
10 divided by 2 is 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 310478.5
Deduct 10 from 10 and we're left 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.

Let's proceed to step 8:
If we divide 0 by 2, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 310478.5
If we subtract 0 from 0, 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.

On to step 9:
When dividing 0 by 2, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 310478.5
If we subtract 0 from 0, 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.

Our division results in 310478.5 with a remaining 0.0.