We're dividing 640881 by 54 
Our goal is to divide 640881 by 54.

On to step 1:
The number 54 fits into 6 0 times, leaving 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.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 54

Step 2:
If we divide 64 by 54, we get 1 and a remainder of 10.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 54 from 64 to get 10.
Include the next digit (0) from the dividend after 10, then repeat: 100 / 54

On to step 3:
54 goes into 100 1 times with a remainder of 46.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
Subtracting 54 from 100 leaves us with 46.
Include the next digit (8) from the dividend after 46, then repeat: 468 / 54

Step 4:
The number 54 fits into 468 8 times, leaving a remainder of 36.
Put 8 as the next digit of the answer. 
Result so far: 118.0
Subtracting 432 from 468 leaves us with 36.
Grab the next digit (8) from the dividend, add it to 36, then carry on: 368 / 54

Going ahead to step 5:
368 divided by 54 is 6 with a remainder of 44.
Put 6 as the next digit of the answer. 
Result so far: 1186.0
Deduct 324 from 368 and we're left with 44.
Take the next digit (1) from the dividend and append it to 44, then repeat: 441 / 54

Step 6:
54 can be fit into 441 8 times, resulting in a remainder of 9.
The number 8 becomes the next digit in our result. 
Result so far: 11868.0
The remainder is 9 after subtracting 432 from 441.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 7:
The number 54 fits into 90 1 times, leaving a remainder of 36.
The next digit of our result is 1. 
Result so far: 11868.1
The remainder is 36 after subtracting 54 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 8:
360 divided by 54 is 6 with a remainder of 36.
Use 6 as the next digit of our solution. 
Result so far: 11868.16
Subtracting 324 from 360 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 9:
54 can be fit into 360 6 times, resulting in a remainder of 36.
Write down 6 as next digit of the result. 
Result so far: 11868.166
Subtracting 324 from 360 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

The quotient of the division is 11868.166, and the remainder is 0.0036.