We look at the division of 66485463 by 285 
We want to divide 66485463 by 285.

Advancing to step 1:
6 divided by 285 is 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 285

Advancing to step 2:
285 goes into 66 0 times with a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 66 to get 66.
Grab the next digit (4) from the dividend, add it to 66, then carry on: 664 / 285

Advancing to step 3:
The number 285 fits into 664 2 times, leaving a remainder of 94.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtracting 570 from 664 leaves us with 94.
Bring next digit (8) of the dividend behind the 94 and repeat the process: 948 / 285

Step 4:
When dividing 948 by 285, we get 3 with a remainder of 93.
Put 3 as the next digit of the answer. 
Result so far: 23.0
Deduct 855 from 948 and we're left with 93.
Bring next digit (5) of the dividend behind the 93 and repeat the process: 935 / 285

Step 5:
If we divide 935 by 285, we get 3 and a remainder of 80.
Write down 3 as next digit of the result. 
Result so far: 233.0
If we subtract 855 from 935, we get 80.
Append the next digit (4) from the dividend to 80 and continue with: 804 / 285

Moving on to step 6:
If we divide 804 by 285, we get 2 and a remainder of 234.
The number 2 becomes the next digit in our result. 
Result so far: 2332.0
If we take 570 away from 804, we end up with 234.
Grab the next digit (6) from the dividend, add it to 234, then carry on: 2346 / 285

Step 7:
2346 divided by 285 is 8 with a remainder of 66.
Record the quotient 8 as the next digit in the result. 
Result so far: 23328.0
Subtract 2280 from 2346 to get 66.
Take the next digit (3) from the dividend and append it to 66, then repeat: 663 / 285

Moving on to step 8:
285 goes into 663 2 times with a remainder of 93.
The number 2 becomes the next digit in our result. 
Result so far: 233282.0
If we take 570 away from 663, we end up with 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Going ahead to step 9:
285 goes into 930 3 times with a remainder of 75.
Record the quotient 3 as the next digit in the result. 
Result so far: 233282.3
If we subtract 855 from 930, we get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Step 10:
285 can be fit into 750 2 times, resulting in a remainder of 180.
Write down 2 as next digit of the result. 
Result so far: 233282.32
If we take 570 away from 750, we end up with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Going ahead to step 11:
The number 285 fits into 1800 6 times, leaving a remainder of 90.
Put 6 as the next digit of the answer. 
Result so far: 233282.326
Deduct 1710 from 1800 and we're left with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

On to step 12:
When dividing 900 by 285, we get 3 with a remainder of 45.
Write down 3 as next digit of the result. 
Result so far: 233282.3263
Subtract 855 from 900 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Advancing to step 13:
285 goes into 450 1 times with a remainder of 165.
Use 1 as the next digit of our solution. 
Result so far: 233282.32631
Subtract 285 from 450 to get 165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

Advancing to step 14:
When dividing 1650 by 285, we get 5 with a remainder of 225.
The next digit of our result is 5. 
Result so far: 233282.326315
If we subtract 1425 from 1650, we get 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

Advancing to step 15:
If we divide 2250 by 285, we get 7 and a remainder of 255.
Put 7 as the next digit of the answer. 
Result so far: 233282.3263157
If we take 1995 away from 2250, we end up with 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

Let's proceed to step 16:
The number 285 fits into 2550 8 times, leaving a remainder of 270.
Use 8 as the next digit of our solution. 
Result so far: 233282.32631578
If we take 2280 away from 2550, we end up with 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

After the division, we end up with 233282.32631578 and a remainder of 2.7e-07.