28311215 divided by 12 
Our goal is to divide 28311215 by 12.

Moving on to step 1:
12 can be fit into 2 0 times, resulting in a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Append the next digit (8) from the dividend to 2 and continue with: 28 / 12

On to step 2:
12 can be fit into 28 2 times, resulting in a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtract 24 from 28 to get 4.
Take the next digit (3) from the dividend and append it to 4, then repeat: 43 / 12

Step 3:
12 can be fit into 43 3 times, resulting in a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 23.0
Deduct 36 from 43 and we're left with 7.
Fetch the next digit (1) from the dividend, attach it to 7 and continue: 71 / 12

On to step 4:
The number 12 fits into 71 5 times, leaving a remainder of 11.
Put 5 as the next digit of the answer. 
Result so far: 235.0
Deduct 60 from 71 and we're left with 11.
Include the next digit (1) from the dividend after 11, then repeat: 111 / 12

Let's proceed to step 5:
If we divide 111 by 12, we get 9 and a remainder of 3.
The number 9 becomes the next digit in our result. 
Result so far: 2359.0
Subtracting 108 from 111 leaves us with 3.
Include the next digit (2) from the dividend after 3, then repeat: 32 / 12

Going ahead to step 6:
12 can be fit into 32 2 times, resulting in a remainder of 8.
The next digit of our result is 2. 
Result so far: 23592.0
Deduct 24 from 32 and we're left with 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 12

Let's proceed to step 7:
12 goes into 81 6 times with a remainder of 9.
Put 6 as the next digit of the answer. 
Result so far: 235926.0
If we take 72 away from 81, we end up with 9.
Append the next digit (5) from the dividend to 9 and continue with: 95 / 12

On to step 8:
When dividing 95 by 12, we get 7 with a remainder of 11.
Record the quotient 7 as the next digit in the result. 
Result so far: 2359267.0
Subtracting 84 from 95 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 9:
When dividing 110 by 12, we get 9 with a remainder of 2.
Put 9 as the next digit of the answer. 
Result so far: 2359267.9
Subtracting 108 from 110 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 10:
If we divide 20 by 12, we get 1 and a remainder of 8.
The number 1 becomes the next digit in our result. 
Result so far: 2359267.91
Deduct 12 from 20 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 11:
When dividing 80 by 12, we get 6 with a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 2359267.916
Subtracting 72 from 80 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 12:
When dividing 80 by 12, we get 6 with a remainder of 8.
The next digit of our result is 6. 
Result so far: 2359267.9166
Subtract 72 from 80 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Our division results in 2359267.9166 with a remaining 8e-05.