We divide 620456 by 2
The aim is to understand the frequency of 2 in 620456.

Let's proceed to step 1:
If we divide 6 by 2, we get 3 and a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtract 6 from 6 to get 0.
Take the next digit (2) from the dividend and append it to 0, then repeat: 2 / 2

On to step 2:
When dividing 2 by 2, we get 1 with a remainder of 0.
The next digit of our result is 1. 
Result so far: 31.0
If we take 2 away from 2, we end up with 0.
Grab the next digit (0) from the dividend, add it to 0, then carry on: 0 / 2

Moving on to step 3:
If we divide 0 by 2, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 310.0
Subtract 0 from 0 to get 0.
Append the next digit (4) from the dividend to 0 and continue with: 4 / 2

Moving on to step 4:
2 goes into 4 2 times with a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 3102.0
If we subtract 4 from 4, we get 0.
Fetch the next digit (5) from the dividend, attach it to 0 and continue: 5 / 2

Advancing to step 5:
2 can be fit into 5 2 times, resulting in a remainder of 1.
Put 2 as the next digit of the answer. 
Result so far: 31022.0
If we subtract 4 from 5, we get 1.
Include the next digit (6) from the dividend after 1, then repeat: 16 / 2

Let's proceed to step 6:
If we divide 16 by 2, we get 8 and a remainder of 0.
The next digit of our result is 8. 
Result so far: 310228.0
The remainder is 0 after subtracting 16 from 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 7:
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: 310228.0
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.

Advancing to step 8:
If we divide 0 by 2, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 310228.0
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.

After the division, we end up with 310228.0 and a remainder of 0.0.