We look at the division of 717214 by 1 
The aim is to understand the frequency of 1 in 717214.

On to step 1:
When dividing 7 by 1, we get 7 with a remainder of 0.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Deduct 7 from 7 and we're left with 0.
Take the next digit (1) from the dividend and append it to 0, then repeat: 1 / 1

Going ahead to step 2:
If we divide 1 by 1, we get 1 and a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 71.0
If we subtract 1 from 1, we get 0.
Take the next digit (7) from the dividend and append it to 0, then repeat: 7 / 1

Moving on to step 3:
1 goes into 7 7 times with a remainder of 0.
The next digit of our result is 7. 
Result so far: 717.0
The remainder is 0 after subtracting 7 from 7.
Fetch the next digit (2) from the dividend, attach it to 0 and continue: 2 / 1

Moving on to step 4:
1 goes into 2 2 times with a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 7172.0
If we take 2 away from 2, we end up with 0.
Fetch the next digit (1) from the dividend, attach it to 0 and continue: 1 / 1

Going ahead to step 5:
The number 1 fits into 1 1 times, leaving a remainder of 0.
The next digit of our result is 1. 
Result so far: 71721.0
Subtracting 1 from 1 leaves us with 0.
Include the next digit (4) from the dividend after 0, then repeat: 4 / 1

Moving on to step 6:
When dividing 4 by 1, we get 4 with a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 717214.0
Deduct 4 from 4 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:
1 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 717214.0
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.

Moving on to step 8:
If we divide 0 by 1, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 717214.0
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.

After the division, we end up with 717214.0 and a remainder of 0.0.