We look at the division of 57663 by 91 
Let's see how many times 91 fits into 57663.

On to step 1:
91 goes into 5 0 times with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Take the next digit (7) from the dividend and append it to 5, then repeat: 57 / 91

Going ahead to step 2:
The number 91 fits into 57 0 times, leaving a remainder of 57.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 57, we end up with 57.
Fetch the next digit (6) from the dividend, attach it to 57 and continue: 576 / 91

On to step 3:
When dividing 576 by 91, we get 6 with a remainder of 30.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Subtracting 546 from 576 leaves us with 30.
Include the next digit (6) from the dividend after 30, then repeat: 306 / 91

Step 4:
The number 91 fits into 306 3 times, leaving a remainder of 33.
Record the quotient 3 as the next digit in the result. 
Result so far: 63.0
Subtracting 273 from 306 leaves us with 33.
Bring next digit (3) of the dividend behind the 33 and repeat the process: 333 / 91

Moving on to step 5:
91 can be fit into 333 3 times, resulting in a remainder of 60.
Record the quotient 3 as the next digit in the result. 
Result so far: 633.0
The remainder is 60 after subtracting 273 from 333.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 6:
When dividing 600 by 91, we get 6 with a remainder of 54.
Write down 6 as next digit of the result. 
Result so far: 633.6
If we subtract 546 from 600, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Going ahead to step 7:
When dividing 540 by 91, we get 5 with a remainder of 85.
The number 5 becomes the next digit in our result. 
Result so far: 633.65
If we take 455 away from 540, we end up with 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Moving on to step 8:
If we divide 850 by 91, we get 9 and a remainder of 31.
The next digit of our result is 9. 
Result so far: 633.659
Deduct 819 from 850 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Step 9:
If we divide 310 by 91, we get 3 and a remainder of 37.
Put 3 as the next digit of the answer. 
Result so far: 633.6593
If we subtract 273 from 310, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Going ahead to step 10:
If we divide 370 by 91, we get 4 and a remainder of 6.
Use 4 as the next digit of our solution. 
Result so far: 633.65934
Subtract 364 from 370 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 11:
91 can be fit into 60 0 times, resulting in a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 633.65934
Subtracting 0 from 60 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 12:
If we divide 600 by 91, we get 6 and a remainder of 54.
The number 6 becomes the next digit in our result. 
Result so far: 633.6593406
If we subtract 546 from 600, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Going ahead to step 13:
540 divided by 91 is 5 with a remainder of 85.
Write down 5 as next digit of the result. 
Result so far: 633.65934065
If we subtract 455 from 540, 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.

Our division results in 633.65934065 with a remaining 8.5e-08.