We're dividing 66595863 by 257 
We want to divide 66595863 by 257.

Going ahead to step 1:
257 goes into 6 0 times with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 257

Advancing to step 2:
The number 257 fits into 66 0 times, leaving a remainder of 66.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Take the next digit (5) from the dividend and append it to 66, then repeat: 665 / 257

Let's proceed to step 3:
When dividing 665 by 257, we get 2 with a remainder of 151.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we take 514 away from 665, we end up with 151.
Append the next digit (9) from the dividend to 151 and continue with: 1519 / 257

Advancing to step 4:
The number 257 fits into 1519 5 times, leaving a remainder of 234.
The number 5 becomes the next digit in our result. 
Result so far: 25.0
Subtract 1285 from 1519 to get 234.
Append the next digit (5) from the dividend to 234 and continue with: 2345 / 257

Advancing to step 5:
If we divide 2345 by 257, we get 9 and a remainder of 32.
Put 9 as the next digit of the answer. 
Result so far: 259.0
The remainder is 32 after subtracting 2313 from 2345.
Bring next digit (8) of the dividend behind the 32 and repeat the process: 328 / 257

On to step 6:
If we divide 328 by 257, we get 1 and a remainder of 71.
Use 1 as the next digit of our solution. 
Result so far: 2591.0
Deduct 257 from 328 and we're left with 71.
Include the next digit (6) from the dividend after 71, then repeat: 716 / 257

Moving on to step 7:
The number 257 fits into 716 2 times, leaving a remainder of 202.
Use 2 as the next digit of our solution. 
Result so far: 25912.0
The remainder is 202 after subtracting 514 from 716.
Bring next digit (3) of the dividend behind the 202 and repeat the process: 2023 / 257

On to step 8:
257 can be fit into 2023 7 times, resulting in a remainder of 224.
Use 7 as the next digit of our solution. 
Result so far: 259127.0
Subtract 1799 from 2023 to get 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Advancing to step 9:
257 can be fit into 2240 8 times, resulting in a remainder of 184.
Write down 8 as next digit of the result. 
Result so far: 259127.8
Deduct 2056 from 2240 and we're left with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

On to step 10:
The number 257 fits into 1840 7 times, leaving a remainder of 41.
The next digit of our result is 7. 
Result so far: 259127.87
The remainder is 41 after subtracting 1799 from 1840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Step 11:
If we divide 410 by 257, we get 1 and a remainder of 153.
Write down 1 as next digit of the result. 
Result so far: 259127.871
If we subtract 257 from 410, we get 153.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1530, and continue the process.

Advancing to step 12:
1530 divided by 257 is 5 with a remainder of 245.
The next digit of our result is 5. 
Result so far: 259127.8715
Subtracting 1285 from 1530 leaves us with 245.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

Let's proceed to step 13:
The number 257 fits into 2450 9 times, leaving a remainder of 137.
Write down 9 as next digit of the result. 
Result so far: 259127.87159
The remainder is 137 after subtracting 2313 from 2450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1370, and continue the process.

On to step 14:
The number 257 fits into 1370 5 times, leaving a remainder of 85.
Record the quotient 5 as the next digit in the result. 
Result so far: 259127.871595
If we subtract 1285 from 1370, we get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Going ahead to step 15:
850 divided by 257 is 3 with a remainder of 79.
Put 3 as the next digit of the answer. 
Result so far: 259127.8715953
Deduct 771 from 850 and we're left with 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

On to step 16:
790 divided by 257 is 3 with a remainder of 19.
The next digit of our result is 3. 
Result so far: 259127.87159533
Deduct 771 from 790 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

In conclusion, the division gives 259127.87159533 with a balance of 1.9e-08.