We look at the division of 356873 by 2 
The aim is to understand the frequency of 2 in 356873.

Advancing to step 1:
When dividing 3 by 2, we get 1 with a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 2 from 3 leaves us with 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 2

Moving on to step 2:
The number 2 fits into 15 7 times, leaving a remainder of 1.
The next digit of our result is 7. 
Result so far: 17.0
If we take 14 away from 15, we end up with 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 2

Moving on to step 3:
The number 2 fits into 16 8 times, leaving a remainder of 0.
Put 8 as the next digit of the answer. 
Result so far: 178.0
Subtracting 16 from 16 leaves us with 0.
Bring next digit (8) of the dividend behind the 0 and repeat the process: 8 / 2

Moving on to step 4:
When dividing 8 by 2, we get 4 with a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 1784.0
The remainder is 0 after subtracting 8 from 8.
Bring next digit (7) of the dividend behind the 0 and repeat the process: 7 / 2

Advancing to step 5:
2 goes into 7 3 times with a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 17843.0
Subtracting 6 from 7 leaves us with 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 2

Step 6:
2 goes into 13 6 times with a remainder of 1.
The next digit of our result is 6. 
Result so far: 178436.0
Subtract 12 from 13 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.

On to step 7:
10 divided by 2 is 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 178436.5
If we take 10 away from 10, we end up 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.
Record the quotient 0 as the next digit in the result. 
Result so far: 178436.5
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.

Moving on to step 9:
The number 2 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 178436.5
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.

In conclusion, the division gives 178436.5 with a balance of 0.0.