217186 ÷ 66 
We're looking to find how many times 66 goes into 217186.

Step 1:
When dividing 2 by 66, we get 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 66

Let's proceed to step 2:
21 divided by 66 is 0 with a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Fetch the next digit (7) from the dividend, attach it to 21 and continue: 217 / 66

Moving on to step 3:
66 can be fit into 217 3 times, resulting in a remainder of 19.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we take 198 away from 217, we end up with 19.
Include the next digit (1) from the dividend after 19, then repeat: 191 / 66

Let's proceed to step 4:
When dividing 191 by 66, we get 2 with a remainder of 59.
The next digit of our result is 2. 
Result so far: 32.0
If we take 132 away from 191, we end up with 59.
Include the next digit (8) from the dividend after 59, then repeat: 598 / 66

Let's proceed to step 5:
If we divide 598 by 66, we get 9 and a remainder of 4.
Put 9 as the next digit of the answer. 
Result so far: 329.0
The remainder is 4 after subtracting 594 from 598.
Include the next digit (6) from the dividend after 4, then repeat: 46 / 66

Step 6:
66 goes into 46 0 times with a remainder of 46.
Record the quotient 0 as the next digit in the result. 
Result so far: 3290.0
Subtracting 0 from 46 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 7:
The number 66 fits into 460 6 times, leaving a remainder of 64.
Record the quotient 6 as the next digit in the result. 
Result so far: 3290.6
Subtracting 396 from 460 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 8:
When dividing 640 by 66, we get 9 with a remainder of 46.
Put 9 as the next digit of the answer. 
Result so far: 3290.69
Subtract 594 from 640 to get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

On to step 9:
If we divide 460 by 66, we get 6 and a remainder of 64.
Record the quotient 6 as the next digit in the result. 
Result so far: 3290.696
If we take 396 away from 460, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 10:
The number 66 fits into 640 9 times, leaving a remainder of 46.
Write down 9 as next digit of the result. 
Result so far: 3290.6969
Subtracting 594 from 640 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

On to step 11:
The number 66 fits into 460 6 times, leaving a remainder of 64.
The number 6 becomes the next digit in our result. 
Result so far: 3290.69696
Subtracting 396 from 460 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 12:
The number 66 fits into 640 9 times, leaving a remainder of 46.
Record the quotient 9 as the next digit in the result. 
Result so far: 3290.696969
The remainder is 46 after subtracting 594 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 13:
66 can be fit into 460 6 times, resulting in a remainder of 64.
Record the quotient 6 as the next digit in the result. 
Result so far: 3290.6969696
Deduct 396 from 460 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 14:
When dividing 640 by 66, we get 9 with a remainder of 46.
Put 9 as the next digit of the answer. 
Result so far: 3290.69696969
Subtract 594 from 640 to get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

The final outcome is 3290.69696969, with a leftover of 4.6e-08.