4485 divided by 1 
The aim is to understand the frequency of 1 in 4485.

Going ahead to step 1:
4 divided by 1 is 4 with a remainder of 0.
The next digit of our result is 4. 
Result so far: 4.0
Deduct 4 from 4 and we're left with 0.
Fetch the next digit (4) from the dividend, attach it to 0 and continue: 4 / 1

Advancing to step 2:
4 divided by 1 is 4 with a remainder of 0.
Write down 4 as next digit of the result. 
Result so far: 44.0
Subtracting 4 from 4 leaves us with 0.
Take the next digit (8) from the dividend and append it to 0, then repeat: 8 / 1

Let's proceed to step 3:
When dividing 8 by 1, we get 8 with a remainder of 0.
The next digit of our result is 8. 
Result so far: 448.0
Deduct 8 from 8 and we're left with 0.
Append the next digit (5) from the dividend to 0 and continue with: 5 / 1

Let's proceed to step 4:
1 goes into 5 5 times with a remainder of 0.
The next digit of our result is 5. 
Result so far: 4485.0
The remainder is 0 after subtracting 5 from 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 5:
The number 1 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 4485.0
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 6:
The number 1 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 4485.0
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.

The final result is 4485.0 with a remainder of 0.0.