We're dividing 66864141 by 12 
We want to divide 66864141 by 12.

Moving on to step 1:
12 can be fit into 6 0 times, resulting in a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 12

Advancing to step 2:
66 divided by 12 is 5 with 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.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 12

On to step 3:
When dividing 68 by 12, we get 5 with a remainder of 8.
Write down 5 as next digit of the result. 
Result so far: 55.0
If we subtract 60 from 68, we get 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 12

Going ahead to step 4:
The number 12 fits into 86 7 times, leaving a remainder of 2.
Record the quotient 7 as the next digit in the result. 
Result so far: 557.0
If we subtract 84 from 86, we get 2.
Append the next digit (4) from the dividend to 2 and continue with: 24 / 12

Going ahead to step 5:
The number 12 fits into 24 2 times, leaving a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 5572.0
If we subtract 24 from 24, we get 0.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 12

Moving on to step 6:
1 divided by 12 is 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 55720.0
Subtracting 0 from 1 leaves us with 1.
Take the next digit (4) from the dividend and append it to 1, then repeat: 14 / 12

Moving on to step 7:
When dividing 14 by 12, we get 1 with a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 557201.0
Deduct 12 from 14 and we're left with 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 12

On to step 8:
The number 12 fits into 21 1 times, leaving a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 5572011.0
Subtracting 12 from 21 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 9:
When dividing 90 by 12, we get 7 with a remainder of 6.
Put 7 as the next digit of the answer. 
Result so far: 5572011.7
Deduct 84 from 90 and we're left 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.

Advancing to step 10:
When dividing 60 by 12, we get 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 5572011.75
If we subtract 60 from 60, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 11:
0 divided by 12 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 5572011.75
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 12:
12 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 5572011.75
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 5572011.75 with a balance of 0.0.