We divide 1312345 by 1
Our goal is to divide 1312345 by 1.

Let's proceed to step 1:
The number 1 fits into 1 1 times, leaving a remainder of 0.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 1 from 1, we get 0.
Include the next digit (3) from the dividend after 0, then repeat: 3 / 1

Let's proceed to step 2:
1 goes into 3 3 times with a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 13.0
If we take 3 away from 3, we end up with 0.
Fetch the next digit (1) from the dividend, attach it to 0 and continue: 1 / 1

On to step 3:
If we divide 1 by 1, we get 1 and a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 131.0
The remainder is 0 after subtracting 1 from 1.
Bring next digit (2) of the dividend behind the 0 and repeat the process: 2 / 1

Advancing to step 4:
1 can be fit into 2 2 times, resulting in a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 1312.0
Deduct 2 from 2 and we're left with 0.
Bring next digit (3) of the dividend behind the 0 and repeat the process: 3 / 1

Let's proceed to step 5:
The number 1 fits into 3 3 times, leaving a remainder of 0.
The next digit of our result is 3. 
Result so far: 13123.0
If we subtract 3 from 3, we get 0.
Fetch the next digit (4) from the dividend, attach it to 0 and continue: 4 / 1

On to step 6:
1 can be fit into 4 4 times, resulting in a remainder of 0.
Write down 4 as next digit of the result. 
Result so far: 131234.0
Subtracting 4 from 4 leaves us with 0.
Take the next digit (5) from the dividend and append it to 0, then repeat: 5 / 1

Let's proceed to step 7:
5 divided by 1 is 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 1312345.0
If we subtract 5 from 5, 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.

Going ahead to step 8:
1 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1312345.0
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.

Let's proceed to step 9:
If we divide 0 by 1, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 1312345.0
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 quotient of the division is 1312345.0, and the remainder is 0.0.