We're dividing 66397933 by 587 
We want to divide 66397933 by 587.

Let's proceed to step 1:
When dividing 6 by 587, we get 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 587

Going ahead to step 2:
When dividing 66 by 587, we get 0 with a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Grab the next digit (3) from the dividend, add it to 66, then carry on: 663 / 587

Let's proceed to step 3:
587 goes into 663 1 times with a remainder of 76.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 76 after subtracting 587 from 663.
Take the next digit (9) from the dividend and append it to 76, then repeat: 769 / 587

Let's proceed to step 4:
When dividing 769 by 587, we get 1 with a remainder of 182.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
If we take 587 away from 769, we end up with 182.
Include the next digit (7) from the dividend after 182, then repeat: 1827 / 587

On to step 5:
587 can be fit into 1827 3 times, resulting in a remainder of 66.
Use 3 as the next digit of our solution. 
Result so far: 113.0
Subtracting 1761 from 1827 leaves us with 66.
Bring next digit (9) of the dividend behind the 66 and repeat the process: 669 / 587

On to step 6:
669 divided by 587 is 1 with a remainder of 82.
The number 1 becomes the next digit in our result. 
Result so far: 1131.0
The remainder is 82 after subtracting 587 from 669.
Include the next digit (3) from the dividend after 82, then repeat: 823 / 587

Step 7:
587 can be fit into 823 1 times, resulting in a remainder of 236.
Write down 1 as next digit of the result. 
Result so far: 11311.0
Subtracting 587 from 823 leaves us with 236.
Include the next digit (3) from the dividend after 236, then repeat: 2363 / 587

Moving on to step 8:
587 goes into 2363 4 times with a remainder of 15.
The next digit of our result is 4. 
Result so far: 113114.0
If we take 2348 away from 2363, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 9:
587 goes into 150 0 times with a remainder of 150.
The number 0 becomes the next digit in our result. 
Result so far: 113114.0
Subtract 0 from 150 to get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Moving on to step 10:
1500 divided by 587 is 2 with a remainder of 326.
The next digit of our result is 2. 
Result so far: 113114.02
If we subtract 1174 from 1500, we get 326.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3260, and continue the process.

Let's proceed to step 11:
587 can be fit into 3260 5 times, resulting in a remainder of 325.
Use 5 as the next digit of our solution. 
Result so far: 113114.025
If we subtract 2935 from 3260, we get 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

On to step 12:
The number 587 fits into 3250 5 times, leaving a remainder of 315.
The next digit of our result is 5. 
Result so far: 113114.0255
Deduct 2935 from 3250 and we're left with 315.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3150, and continue the process.

The final outcome is 113114.0255, with a leftover of 0.00315.