We look at the division of 720919 by 2 
The aim is to understand the frequency of 2 in 720919.

Advancing to step 1:
The number 2 fits into 7 3 times, leaving a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we take 6 away from 7, we end up with 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 2

Moving on to step 2:
When dividing 12 by 2, we get 6 with a remainder of 0.
The next digit of our result is 6. 
Result so far: 36.0
If we subtract 12 from 12, we get 0.
Grab the next digit (0) from the dividend, add it to 0, then carry on: 0 / 2

Moving on to step 3:
0 divided by 2 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 360.0
Subtracting 0 from 0 leaves us with 0.
Include the next digit (9) from the dividend after 0, then repeat: 9 / 2

On to step 4:
9 divided by 2 is 4 with a remainder of 1.
Write down 4 as next digit of the result. 
Result so far: 3604.0
Deduct 8 from 9 and we're left with 1.
Take the next digit (1) from the dividend and append it to 1, then repeat: 11 / 2

Step 5:
11 divided by 2 is 5 with a remainder of 1.
Put 5 as the next digit of the answer. 
Result so far: 36045.0
If we take 10 away from 11, we end up with 1.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 2

Going ahead to step 6:
2 can be fit into 19 9 times, resulting in a remainder of 1.
The next digit of our result is 9. 
Result so far: 360459.0
Subtracting 18 from 19 leaves us 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.

Advancing to step 7:
10 divided by 2 is 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 360459.5
The remainder is 0 after subtracting 10 from 10.
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:
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: 360459.5
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.

Advancing to step 9:
0 divided by 2 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 360459.5
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.

The quotient of the division is 360459.5, and the remainder is 0.0.