We look at the division of 543523 by 12 
Our goal is to divide 543523 by 12.

Let's proceed to step 1:
12 can be fit into 5 0 times, resulting in a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Grab the next digit (4) from the dividend, add it to 5, then carry on: 54 / 12

Let's proceed to step 2:
54 divided by 12 is 4 with a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 4.0
The remainder is 6 after subtracting 48 from 54.
Fetch the next digit (3) from the dividend, attach it to 6 and continue: 63 / 12

On to step 3:
The number 12 fits into 63 5 times, leaving a remainder of 3.
The next digit of our result is 5. 
Result so far: 45.0
Subtract 60 from 63 to get 3.
Fetch the next digit (5) from the dividend, attach it to 3 and continue: 35 / 12

On to step 4:
If we divide 35 by 12, we get 2 and a remainder of 11.
Write down 2 as next digit of the result. 
Result so far: 452.0
If we subtract 24 from 35, we get 11.
Include the next digit (2) from the dividend after 11, then repeat: 112 / 12

Moving on to step 5:
12 goes into 112 9 times with a remainder of 4.
The next digit of our result is 9. 
Result so far: 4529.0
If we take 108 away from 112, we end up with 4.
Take the next digit (3) from the dividend and append it to 4, then repeat: 43 / 12

Going ahead to step 6:
43 divided by 12 is 3 with a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 45293.0
If we take 36 away from 43, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 7:
When dividing 70 by 12, we get 5 with a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 45293.5
If we take 60 away from 70, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 8:
12 goes into 100 8 times with a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 45293.58
Deduct 96 from 100 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 9:
12 goes into 40 3 times with a remainder of 4.
Record the quotient 3 as the next digit in the result. 
Result so far: 45293.583
Subtracting 36 from 40 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 10:
12 can be fit into 40 3 times, resulting in a remainder of 4.
The number 3 becomes the next digit in our result. 
Result so far: 45293.5833
Subtracting 36 from 40 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Our division results in 45293.5833 with a remaining 4e-05.