We're dividing 531440 by 1 
The aim is to understand the frequency of 1 in 531440.

On to step 1:
5 divided by 1 is 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
If we take 5 away from 5, we end up with 0.
Bring next digit (3) of the dividend behind the 0 and repeat the process: 3 / 1

Advancing to step 2:
If we divide 3 by 1, we get 3 and a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 53.0
Deduct 3 from 3 and we're left with 0.
Include the next digit (1) from the dividend after 0, then repeat: 1 / 1

On to step 3:
1 can be fit into 1 1 times, resulting in a remainder of 0.
The next digit of our result is 1. 
Result so far: 531.0
Subtracting 1 from 1 leaves us with 0.
Append the next digit (4) from the dividend to 0 and continue with: 4 / 1

On to step 4:
1 goes into 4 4 times with a remainder of 0.
The next digit of our result is 4. 
Result so far: 5314.0
Subtracting 4 from 4 leaves us with 0.
Include the next digit (4) from the dividend after 0, then repeat: 4 / 1

Let's proceed to step 5:
The number 1 fits into 4 4 times, leaving a remainder of 0.
Record the quotient 4 as the next digit in the result. 
Result so far: 53144.0
Subtract 4 from 4 to get 0.
Grab the next digit (0) from the dividend, add it to 0, then carry on: 0 / 1

Let's proceed to step 6:
1 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 531440.0
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.

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: 531440.0
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.

Step 8:
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: 531440.0
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 quotient of the division is 531440.0, and the remainder is 0.0.