We look at the division of 513431 by 1 
We want to divide 513431 by 1.

On to step 1:
1 can be fit into 5 5 times, resulting in a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 5.0
The remainder is 0 after subtracting 5 from 5.
Include the next digit (1) from the dividend after 0, then repeat: 1 / 1

Going ahead to step 2:
1 divided by 1 is 1 with a remainder of 0.
The next digit of our result is 1. 
Result so far: 51.0
The remainder is 0 after subtracting 1 from 1.
Include the next digit (3) from the dividend after 0, then repeat: 3 / 1

Going ahead to step 3:
1 can be fit into 3 3 times, resulting in a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 513.0
Subtracting 3 from 3 leaves us with 0.
Include the next digit (4) from the dividend after 0, then repeat: 4 / 1

Advancing to step 4:
1 can be fit into 4 4 times, resulting in a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 5134.0
Subtract 4 from 4 to get 0.
Grab the next digit (3) from the dividend, add it to 0, then carry on: 3 / 1

Going ahead to step 5:
1 can be fit into 3 3 times, resulting in a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 51343.0
Subtracting 3 from 3 leaves us with 0.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 1

Advancing to step 6:
1 divided by 1 is 1 with a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 513431.0
If we subtract 1 from 1, 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.

On to step 7:
0 divided by 1 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 513431.0
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.

Moving on to step 8:
When dividing 0 by 1, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 513431.0
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.

The final outcome is 513431.0, with a leftover of 0.0.