We divide 490842 by 1
The aim is to understand the frequency of 1 in 490842.

On to step 1:
When dividing 4 by 1, we get 4 with a remainder of 0.
The next digit of our result is 4. 
Result so far: 4.0
If we subtract 4 from 4, we get 0.
Take the next digit (9) from the dividend and append it to 0, then repeat: 9 / 1

Going ahead to step 2:
1 can be fit into 9 9 times, resulting in a remainder of 0.
Use 9 as the next digit of our solution. 
Result so far: 49.0
If we take 9 away from 9, we end up with 0.
Bring next digit (0) of the dividend behind the 0 and repeat the process: 0 / 1

Step 3:
0 divided by 1 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 490.0
If we take 0 away from 0, we end up with 0.
Bring next digit (8) of the dividend behind the 0 and repeat the process: 8 / 1

Let's proceed to step 4:
If we divide 8 by 1, we get 8 and a remainder of 0.
Record the quotient 8 as the next digit in the result. 
Result so far: 4908.0
Subtracting 8 from 8 leaves us with 0.
Fetch the next digit (4) from the dividend, attach it to 0 and continue: 4 / 1

Advancing to step 5:
1 can be fit into 4 4 times, resulting in a remainder of 0.
The next digit of our result is 4. 
Result so far: 49084.0
If we subtract 4 from 4, we get 0.
Include the next digit (2) from the dividend after 0, then repeat: 2 / 1

Advancing to step 6:
1 goes into 2 2 times with a remainder of 0.
The next digit of our result is 2. 
Result so far: 490842.0
Subtracting 2 from 2 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 7:
1 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 490842.0
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.

Let's proceed to step 8:
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: 490842.0
Deduct 0 from 0 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.

In conclusion, the division gives 490842.0 with a balance of 0.0.