We look at the division of 335315 by 1 
The aim is to understand the frequency of 1 in 335315.

Advancing to step 1:
3 divided by 1 is 3 with a remainder of 0.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Deduct 3 from 3 and we're left with 0.
Append the next digit (3) from the dividend to 0 and continue with: 3 / 1

Moving on to step 2:
3 divided by 1 is 3 with a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 33.0
If we subtract 3 from 3, we get 0.
Include the next digit (5) from the dividend after 0, then repeat: 5 / 1

Advancing to step 3:
1 can be fit into 5 5 times, resulting in a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 335.0
The remainder is 0 after subtracting 5 from 5.
Take the next digit (3) from the dividend and append it to 0, then repeat: 3 / 1

Let's proceed to step 4:
1 goes into 3 3 times with a remainder of 0.
The next digit of our result is 3. 
Result so far: 3353.0
Subtracting 3 from 3 leaves us with 0.
Fetch the next digit (1) from the dividend, attach it to 0 and continue: 1 / 1

Let's proceed to step 5:
1 goes into 1 1 times with a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 33531.0
Subtract 1 from 1 to get 0.
Bring next digit (5) of the dividend behind the 0 and repeat the process: 5 / 1

On to step 6:
1 goes into 5 5 times with a remainder of 0.
The next digit of our result is 5. 
Result so far: 335315.0
Deduct 5 from 5 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 7:
When dividing 0 by 1, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 335315.0
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.

Advancing to step 8:
When dividing 0 by 1, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 335315.0
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.

The final result is 335315.0 with a remainder of 0.0.