66509 divided by 55 
Let's see how many times 55 fits into 66509.

Going ahead to step 1:
55 goes into 6 0 times with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 55

Going ahead to step 2:
55 can be fit into 66 1 times, resulting in a remainder of 11.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 55 from 66 leaves us with 11.
Include the next digit (5) from the dividend after 11, then repeat: 115 / 55

Step 3:
When dividing 115 by 55, we get 2 with a remainder of 5.
The next digit of our result is 2. 
Result so far: 12.0
Subtract 110 from 115 to get 5.
Grab the next digit (0) from the dividend, add it to 5, then carry on: 50 / 55

Moving on to step 4:
The number 55 fits into 50 0 times, leaving a remainder of 50.
The next digit of our result is 0. 
Result so far: 120.0
If we take 0 away from 50, we end up with 50.
Include the next digit (9) from the dividend after 50, then repeat: 509 / 55

Let's proceed to step 5:
If we divide 509 by 55, we get 9 and a remainder of 14.
The next digit of our result is 9. 
Result so far: 1209.0
Subtract 495 from 509 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 6:
When dividing 140 by 55, we get 2 with a remainder of 30.
Use 2 as the next digit of our solution. 
Result so far: 1209.2
Deduct 110 from 140 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 7:
When dividing 300 by 55, we get 5 with a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 1209.25
The remainder is 25 after subtracting 275 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 8:
55 goes into 250 4 times with a remainder of 30.
The number 4 becomes the next digit in our result. 
Result so far: 1209.254
Subtract 220 from 250 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 9:
The number 55 fits into 300 5 times, leaving a remainder of 25.
The next digit of our result is 5. 
Result so far: 1209.2545
If we subtract 275 from 300, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 10:
55 can be fit into 250 4 times, resulting in a remainder of 30.
Put 4 as the next digit of the answer. 
Result so far: 1209.25454
If we take 220 away from 250, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 11:
55 goes into 300 5 times with a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 1209.254545
The remainder is 25 after subtracting 275 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 12:
The number 55 fits into 250 4 times, leaving a remainder of 30.
Write down 4 as next digit of the result. 
Result so far: 1209.2545454
Subtracting 220 from 250 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 13:
The number 55 fits into 300 5 times, leaving a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 1209.25454545
The remainder is 25 after subtracting 275 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

After the division, we end up with 1209.25454545 and a remainder of 2.5e-08.