We're dividing 815925 by 2 
The aim is to understand the frequency of 2 in 815925.

Step 1:
If we divide 8 by 2, we get 4 and a remainder of 0.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtract 8 from 8 to get 0.
Grab the next digit (1) from the dividend, add it to 0, then carry on: 1 / 2

Going ahead to step 2:
1 divided by 2 is 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 40.0
The remainder is 1 after subtracting 0 from 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 2

On to step 3:
When dividing 15 by 2, we get 7 with a remainder of 1.
The next digit of our result is 7. 
Result so far: 407.0
Deduct 14 from 15 and we're left with 1.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 2

Step 4:
2 can be fit into 19 9 times, resulting in a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 4079.0
The remainder is 1 after subtracting 18 from 19.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 2

Moving on to step 5:
2 can be fit into 12 6 times, resulting in a remainder of 0.
Put 6 as the next digit of the answer. 
Result so far: 40796.0
Deduct 12 from 12 and we're left with 0.
Append the next digit (5) from the dividend to 0 and continue with: 5 / 2

Let's proceed to step 6:
When dividing 5 by 2, we get 2 with a remainder of 1.
Use 2 as the next digit of our solution. 
Result so far: 407962.0
If we take 4 away from 5, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 7:
2 can be fit into 10 5 times, resulting in a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 407962.5
Subtract 10 from 10 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.

Let's proceed to step 8:
0 divided by 2 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 407962.5
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.

On to step 9:
2 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 407962.5
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.

Our division results in 407962.5 with a remaining 0.0.