We look at the division of 66671231 by 486 
Our goal is to divide 66671231 by 486.

On to step 1:
486 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 486

Moving on to step 2:
486 can be fit into 66 0 times, resulting in a remainder of 66.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 66, we get 66.
Take the next digit (6) from the dividend and append it to 66, then repeat: 666 / 486

Going ahead to step 3:
If we divide 666 by 486, we get 1 and a remainder of 180.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 486 from 666 to get 180.
Fetch the next digit (7) from the dividend, attach it to 180 and continue: 1807 / 486

Moving on to step 4:
If we divide 1807 by 486, we get 3 and a remainder of 349.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
Deduct 1458 from 1807 and we're left with 349.
Grab the next digit (1) from the dividend, add it to 349, then carry on: 3491 / 486

Advancing to step 5:
486 goes into 3491 7 times with a remainder of 89.
The next digit of our result is 7. 
Result so far: 137.0
Deduct 3402 from 3491 and we're left with 89.
Include the next digit (2) from the dividend after 89, then repeat: 892 / 486

Going ahead to step 6:
486 goes into 892 1 times with a remainder of 406.
Put 1 as the next digit of the answer. 
Result so far: 1371.0
If we take 486 away from 892, we end up with 406.
Grab the next digit (3) from the dividend, add it to 406, then carry on: 4063 / 486

Moving on to step 7:
4063 divided by 486 is 8 with a remainder of 175.
Use 8 as the next digit of our solution. 
Result so far: 13718.0
If we take 3888 away from 4063, we end up with 175.
Include the next digit (1) from the dividend after 175, then repeat: 1751 / 486

Moving on to step 8:
486 goes into 1751 3 times with a remainder of 293.
The next digit of our result is 3. 
Result so far: 137183.0
If we take 1458 away from 1751, we end up with 293.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2930, and continue the process.

Let's proceed to step 9:
If we divide 2930 by 486, we get 6 and a remainder of 14.
Use 6 as the next digit of our solution. 
Result so far: 137183.6
The remainder is 14 after subtracting 2916 from 2930.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 10:
486 can be fit into 140 0 times, resulting in a remainder of 140.
Use 0 as the next digit of our solution. 
Result so far: 137183.6
Deduct 0 from 140 and we're left with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Moving on to step 11:
When dividing 1400 by 486, we get 2 with a remainder of 428.
The next digit of our result is 2. 
Result so far: 137183.602
Deduct 972 from 1400 and we're left with 428.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4280, and continue the process.

Step 12:
486 goes into 4280 8 times with a remainder of 392.
The next digit of our result is 8. 
Result so far: 137183.6028
Subtract 3888 from 4280 to get 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

Advancing to step 13:
When dividing 3920 by 486, we get 8 with a remainder of 32.
The number 8 becomes the next digit in our result. 
Result so far: 137183.60288
Subtracting 3888 from 3920 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The quotient of the division is 137183.60288, and the remainder is 3.2e-05.