395020 ÷ 1 
The aim is to understand the frequency of 1 in 395020.

Let's proceed to step 1:
When dividing 3 by 1, we get 3 with a remainder of 0.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we take 3 away from 3, we end up with 0.
Append the next digit (9) from the dividend to 0 and continue with: 9 / 1

Step 2:
1 can be fit into 9 9 times, resulting in a remainder of 0.
Record the quotient 9 as the next digit in the result. 
Result so far: 39.0
Deduct 9 from 9 and we're left with 0.
Include the next digit (5) from the dividend after 0, then repeat: 5 / 1

Moving on to step 3:
If we divide 5 by 1, we get 5 and a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 395.0
If we subtract 5 from 5, we get 0.
Fetch the next digit (0) from the dividend, attach it to 0 and continue: 0 / 1

Let's proceed to step 4:
1 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 3950.0
Deduct 0 from 0 and we're left with 0.
Take the next digit (2) from the dividend and append it to 0, then repeat: 2 / 1

Step 5:
When dividing 2 by 1, we get 2 with a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 39502.0
If we subtract 2 from 2, we get 0.
Include the next digit (0) from the dividend after 0, then repeat: 0 / 1

Step 6:
1 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 395020.0
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.

Let's proceed to step 7:
If we divide 0 by 1, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 395020.0
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.

Going ahead to step 8:
0 divided by 1 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 395020.0
Subtract 0 from 0 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.

After the division, we end up with 395020.0 and a remainder of 0.0.