We look at the division of 717811 by 2 
The aim is to understand the frequency of 2 in 717811.

On to step 1:
The number 2 fits into 7 3 times, leaving a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Deduct 6 from 7 and we're left with 1.
Take the next digit (1) from the dividend and append it to 1, then repeat: 11 / 2

Let's proceed to step 2:
If we divide 11 by 2, we get 5 and a remainder of 1.
Write down 5 as next digit of the result. 
Result so far: 35.0
Subtracting 10 from 11 leaves us with 1.
Include the next digit (7) from the dividend after 1, then repeat: 17 / 2

Advancing to step 3:
The number 2 fits into 17 8 times, leaving a remainder of 1.
The number 8 becomes the next digit in our result. 
Result so far: 358.0
If we take 16 away from 17, we end up with 1.
Fetch the next digit (8) from the dividend, attach it to 1 and continue: 18 / 2

Advancing to step 4:
The number 2 fits into 18 9 times, leaving a remainder of 0.
The next digit of our result is 9. 
Result so far: 3589.0
If we take 18 away from 18, we end up with 0.
Fetch the next digit (1) from the dividend, attach it to 0 and continue: 1 / 2

On to step 5:
If we divide 1 by 2, we get 0 and a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 35890.0
Subtract 0 from 1 to get 1.
Grab the next digit (1) from the dividend, add it to 1, then carry on: 11 / 2

Advancing to step 6:
2 can be fit into 11 5 times, resulting in a remainder of 1.
Use 5 as the next digit of our solution. 
Result so far: 358905.0
The remainder is 1 after subtracting 10 from 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
2 can be fit into 10 5 times, resulting in a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 358905.5
If we subtract 10 from 10, 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.

Let's proceed to step 8:
If we divide 0 by 2, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 358905.5
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.

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: 358905.5
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 358905.5 with a remaining 0.0.