We're dividing 720312 by 2 
The aim is to understand the frequency of 2 in 720312.

Step 1:
The number 2 fits into 7 3 times, leaving a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we take 6 away from 7, we end up with 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 2

Moving on to step 2:
If we divide 12 by 2, we get 6 and a remainder of 0.
The number 6 becomes the next digit in our result. 
Result so far: 36.0
The remainder is 0 after subtracting 12 from 12.
Bring next digit (0) of the dividend behind the 0 and repeat the process: 0 / 2

Let's proceed to step 3:
2 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 360.0
If we subtract 0 from 0, we get 0.
Append the next digit (3) from the dividend to 0 and continue with: 3 / 2

Step 4:
When dividing 3 by 2, we get 1 with a remainder of 1.
The next digit of our result is 1. 
Result so far: 3601.0
If we take 2 away from 3, we end up with 1.
Include the next digit (1) from the dividend after 1, then repeat: 11 / 2

On to step 5:
2 goes into 11 5 times with a remainder of 1.
Write down 5 as next digit of the result. 
Result so far: 36015.0
Deduct 10 from 11 and we're left with 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 2

Let's proceed to step 6:
2 goes into 12 6 times with a remainder of 0.
The next digit of our result is 6. 
Result so far: 360156.0
Deduct 12 from 12 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.

Advancing to step 7:
The number 2 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 360156.0
The remainder is 0 after subtracting 0 from 0.
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 8:
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: 360156.0
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.

The final outcome is 360156.0, with a leftover of 0.0.