We divide 666980 by 55
Let's see how many times 55 fits into 666980.

Going ahead to step 1:
The number 55 fits into 6 0 times, leaving a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 55

Moving on to step 2:
55 can be fit into 66 1 times, resulting in a remainder of 11.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 55 away from 66, we end up with 11.
Fetch the next digit (6) from the dividend, attach it to 11 and continue: 116 / 55

Moving on to step 3:
55 can be fit into 116 2 times, resulting in a remainder of 6.
The next digit of our result is 2. 
Result so far: 12.0
The remainder is 6 after subtracting 110 from 116.
Grab the next digit (9) from the dividend, add it to 6, then carry on: 69 / 55

Moving on to step 4:
55 can be fit into 69 1 times, resulting in a remainder of 14.
Use 1 as the next digit of our solution. 
Result so far: 121.0
Subtract 55 from 69 to get 14.
Grab the next digit (8) from the dividend, add it to 14, then carry on: 148 / 55

Moving on to step 5:
148 divided by 55 is 2 with a remainder of 38.
Write down 2 as next digit of the result. 
Result so far: 1212.0
If we subtract 110 from 148, we get 38.
Append the next digit (0) from the dividend to 38 and continue with: 380 / 55

Going ahead to step 6:
55 can be fit into 380 6 times, resulting in a remainder of 50.
Record the quotient 6 as the next digit in the result. 
Result so far: 12126.0
Subtract 330 from 380 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 7:
500 divided by 55 is 9 with a remainder of 5.
Write down 9 as next digit of the result. 
Result so far: 12126.9
Deduct 495 from 500 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 8:
50 divided by 55 is 0 with a remainder of 50.
The next digit of our result is 0. 
Result so far: 12126.9
If we subtract 0 from 50, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 9:
500 divided by 55 is 9 with a remainder of 5.
Record the quotient 9 as the next digit in the result. 
Result so far: 12126.909
If we take 495 away from 500, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 10:
55 goes into 50 0 times with a remainder of 50.
The next digit of our result is 0. 
Result so far: 12126.909
If we subtract 0 from 50, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 11:
500 divided by 55 is 9 with a remainder of 5.
Put 9 as the next digit of the answer. 
Result so far: 12126.90909
Subtracting 495 from 500 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 12:
55 goes into 50 0 times with a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 12126.90909
Subtracting 0 from 50 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 13:
If we divide 500 by 55, we get 9 and a remainder of 5.
Put 9 as the next digit of the answer. 
Result so far: 12126.9090909
The remainder is 5 after subtracting 495 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 14:
If we divide 50 by 55, we get 0 and a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 12126.9090909
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

After the division, we end up with 12126.9090909 and a remainder of 5e-08.