We divide 907980 by 2
The aim is to understand the frequency of 2 in 907980.

On to step 1:
The number 2 fits into 9 4 times, leaving a remainder of 1.
The next digit of our result is 4. 
Result so far: 4.0
Deduct 8 from 9 and we're left with 1.
Fetch the next digit (0) from the dividend, attach it to 1 and continue: 10 / 2

On to step 2:
If we divide 10 by 2, we get 5 and a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 45.0
If we subtract 10 from 10, we get 0.
Fetch the next digit (7) from the dividend, attach it to 0 and continue: 7 / 2

Going ahead to step 3:
The number 2 fits into 7 3 times, leaving a remainder of 1.
The next digit of our result is 3. 
Result so far: 453.0
If we subtract 6 from 7, we get 1.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 2

Step 4:
19 divided by 2 is 9 with a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 4539.0
Deduct 18 from 19 and we're left with 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 2

Let's proceed to step 5:
2 goes into 18 9 times with a remainder of 0.
Put 9 as the next digit of the answer. 
Result so far: 45399.0
Deduct 18 from 18 and we're left with 0.
Take the next digit (0) from the dividend and append it to 0, then repeat: 0 / 2

Let's proceed to step 6:
2 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 453990.0
If we take 0 away from 0, 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.

Going ahead to step 7:
2 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 453990.0
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.

Going ahead to step 8:
2 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 453990.0
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.

The final result is 453990.0 with a remainder of 0.0.