We look at the division of 726157 by 2 
The aim is to understand the frequency of 2 in 726157.

Step 1:
7 divided by 2 is 3 with a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtracting 6 from 7 leaves us with 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 2

On to step 2:
The number 2 fits into 12 6 times, leaving a remainder of 0.
Record the quotient 6 as the next digit in the result. 
Result so far: 36.0
Subtract 12 from 12 to get 0.
Append the next digit (6) from the dividend to 0 and continue with: 6 / 2

On to step 3:
6 divided by 2 is 3 with a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 363.0
If we subtract 6 from 6, we get 0.
Grab the next digit (1) from the dividend, add it to 0, then carry on: 1 / 2

On to step 4:
2 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 3630.0
If we take 0 away from 1, we end up with 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 2

On to step 5:
When dividing 15 by 2, we get 7 with a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 36307.0
The remainder is 1 after subtracting 14 from 15.
Grab the next digit (7) from the dividend, add it to 1, then carry on: 17 / 2

Going ahead to step 6:
If we divide 17 by 2, we get 8 and a remainder of 1.
Use 8 as the next digit of our solution. 
Result so far: 363078.0
Subtract 16 from 17 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
2 goes into 10 5 times with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 363078.5
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:
2 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 363078.5
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.

Let's proceed to step 9:
The number 2 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 363078.5
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.

In conclusion, the division gives 363078.5 with a balance of 0.0.