We're dividing 852457 by 1 
The aim is to understand the frequency of 1 in 852457.

Step 1:
1 goes into 8 8 times with a remainder of 0.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
The remainder is 0 after subtracting 8 from 8.
Append the next digit (5) from the dividend to 0 and continue with: 5 / 1

On to step 2:
1 goes into 5 5 times with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 85.0
Subtracting 5 from 5 leaves us with 0.
Append the next digit (2) from the dividend to 0 and continue with: 2 / 1

Going ahead to step 3:
1 goes into 2 2 times with a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 852.0
The remainder is 0 after subtracting 2 from 2.
Append the next digit (4) from the dividend to 0 and continue with: 4 / 1

Let's proceed to step 4:
If we divide 4 by 1, we get 4 and a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 8524.0
If we subtract 4 from 4, we get 0.
Append the next digit (5) from the dividend to 0 and continue with: 5 / 1

Step 5:
5 divided by 1 is 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 85245.0
Subtracting 5 from 5 leaves us with 0.
Grab the next digit (7) from the dividend, add it to 0, then carry on: 7 / 1

Step 6:
The number 1 fits into 7 7 times, leaving a remainder of 0.
Put 7 as the next digit of the answer. 
Result so far: 852457.0
If we take 7 away from 7, 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 7:
The number 1 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 852457.0
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.

Going ahead to step 8:
When dividing 0 by 1, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 852457.0
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.

In conclusion, the division gives 852457.0 with a balance of 0.0.