528790 ÷ 1 
The aim is to understand the frequency of 1 in 528790.

Step 1:
When dividing 5 by 1, we get 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 5.0
If we subtract 5 from 5, we get 0.
Include the next digit (2) from the dividend after 0, then repeat: 2 / 1

Going ahead to step 2:
The number 1 fits into 2 2 times, leaving a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 52.0
The remainder is 0 after subtracting 2 from 2.
Include the next digit (8) from the dividend after 0, then repeat: 8 / 1

Step 3:
1 can be fit into 8 8 times, resulting in a remainder of 0.
The next digit of our result is 8. 
Result so far: 528.0
If we take 8 away from 8, we end up with 0.
Bring next digit (7) of the dividend behind the 0 and repeat the process: 7 / 1

Step 4:
The number 1 fits into 7 7 times, leaving a remainder of 0.
Write down 7 as next digit of the result. 
Result so far: 5287.0
Subtract 7 from 7 to get 0.
Bring next digit (9) of the dividend behind the 0 and repeat the process: 9 / 1

On to step 5:
1 goes into 9 9 times with a remainder of 0.
Use 9 as the next digit of our solution. 
Result so far: 52879.0
If we subtract 9 from 9, we get 0.
Bring next digit (0) of the dividend behind the 0 and repeat the process: 0 / 1

Step 6:
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: 528790.0
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.

Let's proceed to step 7:
The number 1 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 528790.0
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.

Step 8:
If we divide 0 by 1, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 528790.0
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.

Our division results in 528790.0 with a remaining 0.0.