We're dividing 640531 by 27 
We want to figure out the number of times 640531 can be divided by 27.

Step 1:
The number 27 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
Deduct 0 from 6 and we're left with 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 27

Step 2:
The number 27 fits into 64 2 times, leaving a remainder of 10.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
The remainder is 10 after subtracting 54 from 64.
Include the next digit (0) from the dividend after 10, then repeat: 100 / 27

Moving on to step 3:
When dividing 100 by 27, we get 3 with a remainder of 19.
Record the quotient 3 as the next digit in the result. 
Result so far: 23.0
If we take 81 away from 100, we end up with 19.
Bring next digit (5) of the dividend behind the 19 and repeat the process: 195 / 27

Step 4:
27 goes into 195 7 times with a remainder of 6.
Record the quotient 7 as the next digit in the result. 
Result so far: 237.0
Subtract 189 from 195 to get 6.
Take the next digit (3) from the dividend and append it to 6, then repeat: 63 / 27

Let's proceed to step 5:
The number 27 fits into 63 2 times, leaving a remainder of 9.
Write down 2 as next digit of the result. 
Result so far: 2372.0
If we subtract 54 from 63, we get 9.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 27

Going ahead to step 6:
27 can be fit into 91 3 times, resulting in a remainder of 10.
Write down 3 as next digit of the result. 
Result so far: 23723.0
Deduct 81 from 91 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 7:
If we divide 100 by 27, we get 3 and a remainder of 19.
Use 3 as the next digit of our solution. 
Result so far: 23723.3
The remainder is 19 after subtracting 81 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 8:
27 goes into 190 7 times with a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 23723.37
The remainder is 1 after subtracting 189 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 9:
If we divide 10 by 27, we get 0 and a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 23723.37
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 10:
When dividing 100 by 27, we get 3 with a remainder of 19.
The next digit of our result is 3. 
Result so far: 23723.3703
Deduct 81 from 100 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.

On to step 11:
190 divided by 27 is 7 with a remainder of 1.
Use 7 as the next digit of our solution. 
Result so far: 23723.37037
Subtracting 189 from 190 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 12:
27 goes into 10 0 times with a remainder of 10.
The next digit of our result is 0. 
Result so far: 23723.37037
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 13:
The number 27 fits into 100 3 times, leaving a remainder of 19.
Use 3 as the next digit of our solution. 
Result so far: 23723.3703703
Deduct 81 from 100 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.

Advancing to step 14:
27 goes into 190 7 times with a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 23723.37037037
Deduct 189 from 190 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Our division results in 23723.37037037 with a remaining 1e-09.