We divide 12559 by 12
Our goal is to divide 12559 by 12.

Step 1:
If we divide 1 by 12, we get 0 and a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 12

Let's proceed to step 2:
12 divided by 12 is 1 with a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 12 from 12 to get 0.
Bring next digit (5) of the dividend behind the 0 and repeat the process: 5 / 12

Let's proceed to step 3:
5 divided by 12 is 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 10.0
Deduct 0 from 5 and we're left with 5.
Grab the next digit (5) from the dividend, add it to 5, then carry on: 55 / 12

Moving on to step 4:
The number 12 fits into 55 4 times, leaving a remainder of 7.
Use 4 as the next digit of our solution. 
Result so far: 104.0
Subtracting 48 from 55 leaves us with 7.
Grab the next digit (9) from the dividend, add it to 7, then carry on: 79 / 12

On to step 5:
If we divide 79 by 12, we get 6 and a remainder of 7.
Record the quotient 6 as the next digit in the result. 
Result so far: 1046.0
The remainder is 7 after subtracting 72 from 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 6:
When dividing 70 by 12, we get 5 with a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 1046.5
Deduct 60 from 70 and we're left 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.

Advancing to step 7:
The number 12 fits into 100 8 times, leaving a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 1046.58
If we take 96 away from 100, we end up 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.

Step 8:
40 divided by 12 is 3 with a remainder of 4.
The number 3 becomes the next digit in our result. 
Result so far: 1046.583
If we subtract 36 from 40, we get 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.
Put 3 as the next digit of the answer. 
Result so far: 1046.5833
Deduct 36 from 40 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.

Our division results in 1046.5833 with a remaining 4e-05.