721536 divided by 2 
The aim is to understand the frequency of 2 in 721536.

Going ahead to step 1:
When dividing 7 by 2, we get 3 with a remainder of 1.
The next digit of our result is 3. 
Result so far: 3.0
Subtract 6 from 7 to get 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 2

Going ahead to step 2:
12 divided by 2 is 6 with a remainder of 0.
Put 6 as the next digit of the answer. 
Result so far: 36.0
If we subtract 12 from 12, we get 0.
Append the next digit (1) from the dividend to 0 and continue with: 1 / 2

Step 3:
When dividing 1 by 2, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 360.0
If we take 0 away from 1, we end up with 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 2

Going ahead to step 4:
15 divided by 2 is 7 with a remainder of 1.
The next digit of our result is 7. 
Result so far: 3607.0
Deduct 14 from 15 and we're left with 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 2

Advancing to step 5:
When dividing 13 by 2, we get 6 with a remainder of 1.
Put 6 as the next digit of the answer. 
Result so far: 36076.0
The remainder is 1 after subtracting 12 from 13.
Include the next digit (6) from the dividend after 1, then repeat: 16 / 2

Let's proceed to step 6:
16 divided by 2 is 8 with a remainder of 0.
Use 8 as the next digit of our solution. 
Result so far: 360768.0
If we subtract 16 from 16, 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.

Going ahead to step 7:
0 divided by 2 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 360768.0
Deduct 0 from 0 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.

Going ahead to step 8:
If we divide 0 by 2, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 360768.0
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.

After the division, we end up with 360768.0 and a remainder of 0.0.