We look at the division of 162020 by 1 
The aim is to understand the frequency of 1 in 162020.

Step 1:
When dividing 1 by 1, we get 1 with a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 1 from 1 and we're left with 0.
Bring next digit (6) of the dividend behind the 0 and repeat the process: 6 / 1

On to step 2:
The number 1 fits into 6 6 times, leaving a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 16.0
Subtracting 6 from 6 leaves us with 0.
Fetch the next digit (2) from the dividend, attach it to 0 and continue: 2 / 1

On to step 3:
1 goes into 2 2 times with a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 162.0
If we take 2 away from 2, we end up with 0.
Take the next digit (0) from the dividend and append it to 0, then repeat: 0 / 1

Step 4:
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: 1620.0
Subtracting 0 from 0 leaves us with 0.
Take the next digit (2) from the dividend and append it to 0, then repeat: 2 / 1

On to step 5:
2 divided by 1 is 2 with a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 16202.0
If we subtract 2 from 2, we get 0.
Fetch the next digit (0) from the dividend, attach it to 0 and continue: 0 / 1

Going ahead to step 6:
1 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 162020.0
The remainder is 0 after subtracting 0 from 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:
1 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 162020.0
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.

Going ahead to step 8:
If we divide 0 by 1, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 162020.0
The remainder is 0 after subtracting 0 from 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 outcome is 162020.0, with a leftover of 0.0.