We're dividing 210364 by 66 
We want to figure out the number of times 210364 can be divided by 66.

On to step 1:
When dividing 2 by 66, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 66

Step 2:
When dividing 21 by 66, we get 0 with a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Grab the next digit (0) from the dividend, add it to 21, then carry on: 210 / 66

Advancing to step 3:
210 divided by 66 is 3 with a remainder of 12.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtracting 198 from 210 leaves us with 12.
Take the next digit (3) from the dividend and append it to 12, then repeat: 123 / 66

Moving on to step 4:
When dividing 123 by 66, we get 1 with a remainder of 57.
Put 1 as the next digit of the answer. 
Result so far: 31.0
If we take 66 away from 123, we end up with 57.
Bring next digit (6) of the dividend behind the 57 and repeat the process: 576 / 66

Let's proceed to step 5:
If we divide 576 by 66, we get 8 and a remainder of 48.
Record the quotient 8 as the next digit in the result. 
Result so far: 318.0
The remainder is 48 after subtracting 528 from 576.
Bring next digit (4) of the dividend behind the 48 and repeat the process: 484 / 66

Step 6:
66 goes into 484 7 times with a remainder of 22.
Use 7 as the next digit of our solution. 
Result so far: 3187.0
Deduct 462 from 484 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 7:
The number 66 fits into 220 3 times, leaving a remainder of 22.
Record the quotient 3 as the next digit in the result. 
Result so far: 3187.3
The remainder is 22 after subtracting 198 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 8:
The number 66 fits into 220 3 times, leaving a remainder of 22.
The number 3 becomes the next digit in our result. 
Result so far: 3187.33
If we subtract 198 from 220, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

The quotient of the division is 3187.33, and the remainder is 0.022.