13443 divided by 1 
We're looking to find how many times 1 goes into 13443.

Let's proceed to step 1:
1 divided by 1 is 1 with a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 1 from 1 to get 0.
Include the next digit (3) from the dividend after 0, then repeat: 3 / 1

Advancing to step 2:
When dividing 3 by 1, we get 3 with a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 13.0
Subtracting 3 from 3 leaves us with 0.
Append the next digit (4) from the dividend to 0 and continue with: 4 / 1

Going ahead to step 3:
1 can be fit into 4 4 times, resulting in a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 134.0
The remainder is 0 after subtracting 4 from 4.
Append the next digit (4) from the dividend to 0 and continue with: 4 / 1

Going ahead to step 4:
When dividing 4 by 1, we get 4 with a remainder of 0.
Record the quotient 4 as the next digit in the result. 
Result so far: 1344.0
If we subtract 4 from 4, we get 0.
Bring next digit (3) of the dividend behind the 0 and repeat the process: 3 / 1

Advancing to step 5:
The number 1 fits into 3 3 times, leaving a remainder of 0.
Write down 3 as next digit of the result. 
Result so far: 13443.0
The remainder is 0 after subtracting 3 from 3.
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 6:
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: 13443.0
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:
0 divided by 1 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 13443.0
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.

The final result is 13443.0 with a remainder of 0.0.