We divide 855618 by 2
The aim is to understand the frequency of 2 in 855618.

On to step 1:
2 goes into 8 4 times with a remainder of 0.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Deduct 8 from 8 and we're left with 0.
Grab the next digit (5) from the dividend, add it to 0, then carry on: 5 / 2

Advancing to step 2:
When dividing 5 by 2, we get 2 with a remainder of 1.
Write down 2 as next digit of the result. 
Result so far: 42.0
Subtracting 4 from 5 leaves us with 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 2

Moving on to step 3:
15 divided by 2 is 7 with a remainder of 1.
The next digit of our result is 7. 
Result so far: 427.0
If we subtract 14 from 15, we get 1.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 2

Moving on to step 4:
The number 2 fits into 16 8 times, leaving a remainder of 0.
The number 8 becomes the next digit in our result. 
Result so far: 4278.0
The remainder is 0 after subtracting 16 from 16.
Include the next digit (1) from the dividend after 0, then repeat: 1 / 2

Step 5:
The number 2 fits into 1 0 times, leaving a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 42780.0
If we subtract 0 from 1, we get 1.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 2

Let's proceed to step 6:
If we divide 18 by 2, we get 9 and a remainder of 0.
The next digit of our result is 9. 
Result so far: 427809.0
Deduct 18 from 18 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.

On to step 7:
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: 427809.0
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.

Let's proceed to step 8:
The number 2 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 427809.0
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.

Our division results in 427809.0 with a remaining 0.0.