548403 ÷ 12 
We want to divide 548403 by 12.

Moving on to step 1:
5 divided by 12 is 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Take the next digit (4) from the dividend and append it to 5, then repeat: 54 / 12

Advancing to step 2:
12 goes into 54 4 times with a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 4.0
The remainder is 6 after subtracting 48 from 54.
Fetch the next digit (8) from the dividend, attach it to 6 and continue: 68 / 12

Going ahead to step 3:
The number 12 fits into 68 5 times, leaving a remainder of 8.
Use 5 as the next digit of our solution. 
Result so far: 45.0
The remainder is 8 after subtracting 60 from 68.
Take the next digit (4) from the dividend and append it to 8, then repeat: 84 / 12

Let's proceed to step 4:
When dividing 84 by 12, we get 7 with a remainder of 0.
Use 7 as the next digit of our solution. 
Result so far: 457.0
Deduct 84 from 84 and we're left with 0.
Grab the next digit (0) from the dividend, add it to 0, then carry on: 0 / 12

Going ahead to step 5:
The number 12 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 4570.0
The remainder is 0 after subtracting 0 from 0.
Include the next digit (3) from the dividend after 0, then repeat: 3 / 12

On to step 6:
When dividing 3 by 12, we get 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 45700.0
Deduct 0 from 3 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 7:
When dividing 30 by 12, we get 2 with a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 45700.2
If we subtract 24 from 30, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 8:
When dividing 60 by 12, we get 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 45700.25
The remainder is 0 after subtracting 60 from 60.
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 9:
If we divide 0 by 12, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 45700.25
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.

Advancing to step 10:
0 divided by 12 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 45700.25
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.

In conclusion, the division gives 45700.25 with a balance of 0.0.