66289901 ÷ 511 
Let's see how many times 511 fits into 66289901.

Moving on to step 1:
If we divide 6 by 511, we get 0 and a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 511

Moving on to step 2:
511 can be fit into 66 0 times, resulting in a remainder of 66.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 66 and we're left with 66.
Fetch the next digit (2) from the dividend, attach it to 66 and continue: 662 / 511

Let's proceed to step 3:
The number 511 fits into 662 1 times, leaving a remainder of 151.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 151 after subtracting 511 from 662.
Bring next digit (8) of the dividend behind the 151 and repeat the process: 1518 / 511

Advancing to step 4:
511 can be fit into 1518 2 times, resulting in a remainder of 496.
The next digit of our result is 2. 
Result so far: 12.0
If we take 1022 away from 1518, we end up with 496.
Include the next digit (9) from the dividend after 496, then repeat: 4969 / 511

On to step 5:
If we divide 4969 by 511, we get 9 and a remainder of 370.
Use 9 as the next digit of our solution. 
Result so far: 129.0
Subtracting 4599 from 4969 leaves us with 370.
Append the next digit (9) from the dividend to 370 and continue with: 3709 / 511

Advancing to step 6:
If we divide 3709 by 511, we get 7 and a remainder of 132.
Write down 7 as next digit of the result. 
Result so far: 1297.0
Deduct 3577 from 3709 and we're left with 132.
Append the next digit (0) from the dividend to 132 and continue with: 1320 / 511

On to step 7:
511 can be fit into 1320 2 times, resulting in a remainder of 298.
The number 2 becomes the next digit in our result. 
Result so far: 12972.0
Subtract 1022 from 1320 to get 298.
Bring next digit (1) of the dividend behind the 298 and repeat the process: 2981 / 511

Moving on to step 8:
The number 511 fits into 2981 5 times, leaving a remainder of 426.
Put 5 as the next digit of the answer. 
Result so far: 129725.0
Subtract 2555 from 2981 to get 426.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4260, and continue the process.

Step 9:
4260 divided by 511 is 8 with a remainder of 172.
Put 8 as the next digit of the answer. 
Result so far: 129725.8
Subtracting 4088 from 4260 leaves us with 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Let's proceed to step 10:
511 can be fit into 1720 3 times, resulting in a remainder of 187.
Write down 3 as next digit of the result. 
Result so far: 129725.83
Subtracting 1533 from 1720 leaves us with 187.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1870, and continue the process.

Going ahead to step 11:
511 can be fit into 1870 3 times, resulting in a remainder of 337.
The next digit of our result is 3. 
Result so far: 129725.833
If we take 1533 away from 1870, we end up with 337.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3370, and continue the process.

Our division results in 129725.833 with a remaining 0.0337.