We divide 248559 by 12
Let's see how many times 12 fits into 248559.

Step 1:
If we divide 2 by 12, we get 0 and a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Fetch the next digit (4) from the dividend, attach it to 2 and continue: 24 / 12

Moving on to step 2:
12 goes into 24 2 times with a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Deduct 24 from 24 and we're left with 0.
Append the next digit (8) from the dividend to 0 and continue with: 8 / 12

Going ahead to step 3:
12 can be fit into 8 0 times, resulting in a remainder of 8.
The next digit of our result is 0. 
Result so far: 20.0
The remainder is 8 after subtracting 0 from 8.
Include the next digit (5) from the dividend after 8, then repeat: 85 / 12

Step 4:
If we divide 85 by 12, we get 7 and a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 207.0
Subtracting 84 from 85 leaves us with 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 12

Going ahead to step 5:
When dividing 15 by 12, we get 1 with a remainder of 3.
Use 1 as the next digit of our solution. 
Result so far: 2071.0
The remainder is 3 after subtracting 12 from 15.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 12

Going ahead to step 6:
12 goes into 39 3 times with a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 20713.0
If we take 36 away from 39, we end up 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.

Let's proceed to step 7:
12 can be fit into 30 2 times, resulting in a remainder of 6.
The number 2 becomes the next digit in our result. 
Result so far: 20713.2
If we take 24 away from 30, we end up with 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:
The number 12 fits into 60 5 times, leaving a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 20713.25
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:
12 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 20713.25
If we take 0 away from 0, we end up 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 10:
The number 12 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 20713.25
If we take 0 away from 0, we end up 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.

After the division, we end up with 20713.25 and a remainder of 0.0.