661228 divided by 12 
We want to figure out the number of times 661228 can be divided by 12.

Step 1:
The number 12 fits into 6 0 times, leaving a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 12

Going ahead to step 2:
The number 12 fits into 66 5 times, leaving a remainder of 6.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtract 60 from 66 to get 6.
Grab the next digit (1) from the dividend, add it to 6, then carry on: 61 / 12

Step 3:
12 goes into 61 5 times with a remainder of 1.
The number 5 becomes the next digit in our result. 
Result so far: 55.0
Subtract 60 from 61 to get 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 12

On to step 4:
12 goes into 12 1 times with a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 551.0
Deduct 12 from 12 and we're left with 0.
Grab the next digit (2) from the dividend, add it to 0, then carry on: 2 / 12

Let's proceed to step 5:
2 divided by 12 is 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 5510.0
If we subtract 0 from 2, we get 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 12

On to step 6:
28 divided by 12 is 2 with a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 55102.0
Subtracting 24 from 28 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.

Moving on to step 7:
If we divide 40 by 12, we get 3 and a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 55102.3
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.

Moving on to step 8:
If we divide 40 by 12, we get 3 and a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 55102.33
The remainder is 4 after subtracting 36 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The quotient of the division is 55102.33, and the remainder is 0.004.