Let's divide 66216425 by 66
Let's see how many times 66 fits into 66216425.

Going ahead to step 1:
66 can be fit into 6 0 times, resulting in a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 66

Advancing to step 2:
When dividing 66 by 66, we get 1 with a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 66 away from 66, we end up with 0.
Grab the next digit (2) from the dividend, add it to 0, then carry on: 2 / 66

Let's proceed to step 3:
66 goes into 2 0 times with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 10.0
If we take 0 away from 2, we end up with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 66

On to step 4:
66 goes into 21 0 times with a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 100.0
If we subtract 0 from 21, we get 21.
Bring next digit (6) of the dividend behind the 21 and repeat the process: 216 / 66

On to step 5:
66 goes into 216 3 times with a remainder of 18.
Write down 3 as next digit of the result. 
Result so far: 1003.0
Deduct 198 from 216 and we're left with 18.
Include the next digit (4) from the dividend after 18, then repeat: 184 / 66

Step 6:
66 can be fit into 184 2 times, resulting in a remainder of 52.
Put 2 as the next digit of the answer. 
Result so far: 10032.0
The remainder is 52 after subtracting 132 from 184.
Take the next digit (2) from the dividend and append it to 52, then repeat: 522 / 66

On to step 7:
522 divided by 66 is 7 with a remainder of 60.
Use 7 as the next digit of our solution. 
Result so far: 100327.0
Deduct 462 from 522 and we're left with 60.
Bring next digit (5) of the dividend behind the 60 and repeat the process: 605 / 66

Let's proceed to step 8:
605 divided by 66 is 9 with a remainder of 11.
Use 9 as the next digit of our solution. 
Result so far: 1003279.0
If we subtract 594 from 605, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 9:
66 goes into 110 1 times with a remainder of 44.
The number 1 becomes the next digit in our result. 
Result so far: 1003279.1
Subtract 66 from 110 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Let's proceed to step 10:
If we divide 440 by 66, we get 6 and a remainder of 44.
Put 6 as the next digit of the answer. 
Result so far: 1003279.16
If we take 396 away from 440, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 11:
If we divide 440 by 66, we get 6 and a remainder of 44.
Use 6 as the next digit of our solution. 
Result so far: 1003279.166
Subtracting 396 from 440 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

The final result is 1003279.166 with a remainder of 0.0044.