We look at the division of 800171 by 1 
The aim is to understand the frequency of 1 in 800171.

Advancing to step 1:
If we divide 8 by 1, we get 8 and a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtracting 8 from 8 leaves us with 0.
Fetch the next digit (0) from the dividend, attach it to 0 and continue: 0 / 1

Moving on to step 2:
0 divided by 1 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 80.0
If we subtract 0 from 0, we get 0.
Bring next digit (0) of the dividend behind the 0 and repeat the process: 0 / 1

Going ahead to step 3:
1 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: 800.0
Deduct 0 from 0 and we're left with 0.
Fetch the next digit (1) from the dividend, attach it to 0 and continue: 1 / 1

Going ahead to step 4:
The number 1 fits into 1 1 times, leaving a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 8001.0
The remainder is 0 after subtracting 1 from 1.
Append the next digit (7) from the dividend to 0 and continue with: 7 / 1

Moving on to step 5:
7 divided by 1 is 7 with a remainder of 0.
The number 7 becomes the next digit in our result. 
Result so far: 80017.0
The remainder is 0 after subtracting 7 from 7.
Fetch the next digit (1) from the dividend, attach it to 0 and continue: 1 / 1

Let's proceed to step 6:
If we divide 1 by 1, we get 1 and a remainder of 0.
The next digit of our result is 1. 
Result so far: 800171.0
Subtract 1 from 1 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.

Advancing to step 7:
When dividing 0 by 1, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 800171.0
Subtracting 0 from 0 leaves us 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 8:
0 divided by 1 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 800171.0
Subtracting 0 from 0 leaves us 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 800171.0 with a remaining 0.0.