Let's divide 66581699 by 511
Our goal is to divide 66581699 by 511.

Advancing to step 1:
The number 511 fits into 6 0 times, leaving a remainder of 6.
Record the quotient 0 as the next digit in the result. 
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 / 511

Going ahead to step 2:
The number 511 fits into 66 0 times, leaving a remainder of 66.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 66, we get 66.
Bring next digit (5) of the dividend behind the 66 and repeat the process: 665 / 511

Going ahead to step 3:
When dividing 665 by 511, we get 1 with a remainder of 154.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 511 from 665, we get 154.
Append the next digit (8) from the dividend to 154 and continue with: 1548 / 511

Going ahead to step 4:
511 goes into 1548 3 times with a remainder of 15.
Write down 3 as next digit of the result. 
Result so far: 13.0
Subtracting 1533 from 1548 leaves us with 15.
Take the next digit (1) from the dividend and append it to 15, then repeat: 151 / 511

Let's proceed to step 5:
When dividing 151 by 511, we get 0 with a remainder of 151.
Record the quotient 0 as the next digit in the result. 
Result so far: 130.0
Subtracting 0 from 151 leaves us with 151.
Take the next digit (6) from the dividend and append it to 151, then repeat: 1516 / 511

Advancing to step 6:
511 goes into 1516 2 times with a remainder of 494.
The number 2 becomes the next digit in our result. 
Result so far: 1302.0
Subtract 1022 from 1516 to get 494.
Grab the next digit (9) from the dividend, add it to 494, then carry on: 4949 / 511

Let's proceed to step 7:
511 goes into 4949 9 times with a remainder of 350.
Put 9 as the next digit of the answer. 
Result so far: 13029.0
The remainder is 350 after subtracting 4599 from 4949.
Grab the next digit (9) from the dividend, add it to 350, then carry on: 3509 / 511

Advancing to step 8:
The number 511 fits into 3509 6 times, leaving a remainder of 443.
Record the quotient 6 as the next digit in the result. 
Result so far: 130296.0
If we take 3066 away from 3509, we end up with 443.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4430, and continue the process.

Step 9:
511 goes into 4430 8 times with a remainder of 342.
Record the quotient 8 as the next digit in the result. 
Result so far: 130296.8
Subtracting 4088 from 4430 leaves us with 342.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3420, and continue the process.

Advancing to step 10:
511 goes into 3420 6 times with a remainder of 354.
Put 6 as the next digit of the answer. 
Result so far: 130296.86
Subtract 3066 from 3420 to get 354.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

On to step 11:
3540 divided by 511 is 6 with a remainder of 474.
Put 6 as the next digit of the answer. 
Result so far: 130296.866
If we subtract 3066 from 3540, we get 474.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4740, and continue the process.

The final outcome is 130296.866, with a leftover of 0.0474.