We divide 421447 by 66
We want to divide 421447 by 66.

Moving on to step 1:
When dividing 4 by 66, we get 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 66

Step 2:
The number 66 fits into 42 0 times, leaving a remainder of 42.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 42, we get 42.
Append the next digit (1) from the dividend to 42 and continue with: 421 / 66

Going ahead to step 3:
66 can be fit into 421 6 times, resulting in a remainder of 25.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Deduct 396 from 421 and we're left with 25.
Fetch the next digit (4) from the dividend, attach it to 25 and continue: 254 / 66

Step 4:
66 goes into 254 3 times with a remainder of 56.
Write down 3 as next digit of the result. 
Result so far: 63.0
Deduct 198 from 254 and we're left with 56.
Include the next digit (4) from the dividend after 56, then repeat: 564 / 66

On to step 5:
If we divide 564 by 66, we get 8 and a remainder of 36.
The next digit of our result is 8. 
Result so far: 638.0
The remainder is 36 after subtracting 528 from 564.
Include the next digit (7) from the dividend after 36, then repeat: 367 / 66

Moving on to step 6:
When dividing 367 by 66, we get 5 with a remainder of 37.
Record the quotient 5 as the next digit in the result. 
Result so far: 6385.0
If we subtract 330 from 367, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Step 7:
370 divided by 66 is 5 with a remainder of 40.
Put 5 as the next digit of the answer. 
Result so far: 6385.5
Subtracting 330 from 370 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 8:
66 can be fit into 400 6 times, resulting in a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 6385.56
Subtracting 396 from 400 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.

Let's proceed to step 9:
66 goes into 40 0 times with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 6385.56
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 10:
If we divide 400 by 66, we get 6 and a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 6385.5606
Subtracting 396 from 400 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.

Going ahead to step 11:
66 can be fit into 40 0 times, resulting in a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 6385.5606
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 12:
When dividing 400 by 66, we get 6 with a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 6385.560606
Subtract 396 from 400 to 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.

Let's proceed to step 13:
The number 66 fits into 40 0 times, leaving a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 6385.560606
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 14:
66 goes into 400 6 times with a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 6385.56060606
Subtract 396 from 400 to 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.

The final result is 6385.56060606 with a remainder of 4e-09.