Let's divide 420617 by 66
We're looking to find how many times 66 goes into 420617.

Let's proceed to step 1:
The number 66 fits into 4 0 times, leaving a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 66

Let's proceed to step 2:
The number 66 fits into 42 0 times, leaving a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Grab the next digit (0) from the dividend, add it to 42, then carry on: 420 / 66

On to step 3:
66 can be fit into 420 6 times, resulting in a remainder of 24.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
Subtracting 396 from 420 leaves us with 24.
Include the next digit (6) from the dividend after 24, then repeat: 246 / 66

Advancing to step 4:
246 divided by 66 is 3 with a remainder of 48.
The next digit of our result is 3. 
Result so far: 63.0
Deduct 198 from 246 and we're left with 48.
Bring next digit (1) of the dividend behind the 48 and repeat the process: 481 / 66

Let's proceed to step 5:
The number 66 fits into 481 7 times, leaving a remainder of 19.
Record the quotient 7 as the next digit in the result. 
Result so far: 637.0
If we take 462 away from 481, we end up with 19.
Append the next digit (7) from the dividend to 19 and continue with: 197 / 66

Going ahead to step 6:
The number 66 fits into 197 2 times, leaving a remainder of 65.
The next digit of our result is 2. 
Result so far: 6372.0
If we subtract 132 from 197, we get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Let's proceed to step 7:
The number 66 fits into 650 9 times, leaving a remainder of 56.
The next digit of our result is 9. 
Result so far: 6372.9
Subtract 594 from 650 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 8:
66 goes into 560 8 times with a remainder of 32.
Write down 8 as next digit of the result. 
Result so far: 6372.98
Subtract 528 from 560 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 9:
If we divide 320 by 66, we get 4 and a remainder of 56.
The number 4 becomes the next digit in our result. 
Result so far: 6372.984
If we take 264 away from 320, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Going ahead to step 10:
66 can be fit into 560 8 times, resulting in a remainder of 32.
The next digit of our result is 8. 
Result so far: 6372.9848
Subtract 528 from 560 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 11:
The number 66 fits into 320 4 times, leaving a remainder of 56.
Put 4 as the next digit of the answer. 
Result so far: 6372.98484
The remainder is 56 after subtracting 264 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 12:
The number 66 fits into 560 8 times, leaving a remainder of 32.
Use 8 as the next digit of our solution. 
Result so far: 6372.984848
If we subtract 528 from 560, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 13:
66 goes into 320 4 times with a remainder of 56.
The next digit of our result is 4. 
Result so far: 6372.9848484
Subtract 264 from 320 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 14:
66 goes into 560 8 times with a remainder of 32.
Record the quotient 8 as the next digit in the result. 
Result so far: 6372.98484848
The remainder is 32 after subtracting 528 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The final outcome is 6372.98484848, with a leftover of 3.2e-08.