We're dividing 64181621 by 12 
Our goal is to divide 64181621 by 12.

Advancing to step 1:
When dividing 6 by 12, we get 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 12

Let's proceed to step 2:
The number 12 fits into 64 5 times, leaving a remainder of 4.
Use 5 as the next digit of our solution. 
Result so far: 5.0
If we subtract 60 from 64, we get 4.
Include the next digit (1) from the dividend after 4, then repeat: 41 / 12

Advancing to step 3:
12 goes into 41 3 times with a remainder of 5.
The next digit of our result is 3. 
Result so far: 53.0
Subtracting 36 from 41 leaves us with 5.
Bring next digit (8) of the dividend behind the 5 and repeat the process: 58 / 12

Let's proceed to step 4:
The number 12 fits into 58 4 times, leaving a remainder of 10.
The number 4 becomes the next digit in our result. 
Result so far: 534.0
If we take 48 away from 58, we end up with 10.
Include the next digit (1) from the dividend after 10, then repeat: 101 / 12

Step 5:
101 divided by 12 is 8 with a remainder of 5.
The number 8 becomes the next digit in our result. 
Result so far: 5348.0
Deduct 96 from 101 and we're left with 5.
Fetch the next digit (6) from the dividend, attach it to 5 and continue: 56 / 12

On to step 6:
If we divide 56 by 12, we get 4 and a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 53484.0
Subtracting 48 from 56 leaves us with 8.
Bring next digit (2) of the dividend behind the 8 and repeat the process: 82 / 12

Moving on to step 7:
82 divided by 12 is 6 with a remainder of 10.
Write down 6 as next digit of the result. 
Result so far: 534846.0
Subtracting 72 from 82 leaves us with 10.
Fetch the next digit (1) from the dividend, attach it to 10 and continue: 101 / 12

Let's proceed to step 8:
12 can be fit into 101 8 times, resulting in a remainder of 5.
Write down 8 as next digit of the result. 
Result so far: 5348468.0
The remainder is 5 after subtracting 96 from 101.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 9:
12 can be fit into 50 4 times, resulting in a remainder of 2.
The next digit of our result is 4. 
Result so far: 5348468.4
If we subtract 48 from 50, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 10:
The number 12 fits into 20 1 times, leaving a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 5348468.41
Subtract 12 from 20 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.

Let's proceed to step 11:
80 divided by 12 is 6 with a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 5348468.416
If we take 72 away from 80, we end up 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.

Let's proceed to step 12:
The number 12 fits into 80 6 times, leaving a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 5348468.4166
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.

The quotient of the division is 5348468.4166, and the remainder is 8e-05.