We're dividing 745825 by 1 
The aim is to understand the frequency of 1 in 745825.

Let's proceed to step 1:
When dividing 7 by 1, we get 7 with a remainder of 0.
The next digit of our result is 7. 
Result so far: 7.0
Subtract 7 from 7 to get 0.
Fetch the next digit (4) from the dividend, attach it to 0 and continue: 4 / 1

Advancing to step 2:
When dividing 4 by 1, we get 4 with a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 74.0
Subtracting 4 from 4 leaves us with 0.
Grab the next digit (5) from the dividend, add it to 0, then carry on: 5 / 1

Advancing to step 3:
1 goes into 5 5 times with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 745.0
If we take 5 away from 5, we end up with 0.
Include the next digit (8) from the dividend after 0, then repeat: 8 / 1

Going ahead to step 4:
If we divide 8 by 1, we get 8 and a remainder of 0.
The number 8 becomes the next digit in our result. 
Result so far: 7458.0
Deduct 8 from 8 and we're left with 0.
Grab the next digit (2) from the dividend, add it to 0, then carry on: 2 / 1

On to step 5:
The number 1 fits into 2 2 times, leaving a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 74582.0
The remainder is 0 after subtracting 2 from 2.
Append the next digit (5) from the dividend to 0 and continue with: 5 / 1

Let's proceed to step 6:
5 divided by 1 is 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 745825.0
Deduct 5 from 5 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.

Going ahead to step 7:
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: 745825.0
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.

On to step 8:
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: 745825.0
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 745825.0 and a remainder of 0.0.