640384 divided by 23 
We want to figure out the number of times 640384 can be divided by 23.

Moving on to step 1:
If we divide 6 by 23, we get 0 and a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 23

On to step 2:
23 can be fit into 64 2 times, resulting in a remainder of 18.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we subtract 46 from 64, we get 18.
Append the next digit (0) from the dividend to 18 and continue with: 180 / 23

Advancing to step 3:
180 divided by 23 is 7 with a remainder of 19.
The next digit of our result is 7. 
Result so far: 27.0
The remainder is 19 after subtracting 161 from 180.
Bring next digit (3) of the dividend behind the 19 and repeat the process: 193 / 23

Moving on to step 4:
The number 23 fits into 193 8 times, leaving a remainder of 9.
The number 8 becomes the next digit in our result. 
Result so far: 278.0
If we take 184 away from 193, we end up with 9.
Fetch the next digit (8) from the dividend, attach it to 9 and continue: 98 / 23

Let's proceed to step 5:
23 can be fit into 98 4 times, resulting in a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 2784.0
The remainder is 6 after subtracting 92 from 98.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 23

Let's proceed to step 6:
23 goes into 64 2 times with a remainder of 18.
Put 2 as the next digit of the answer. 
Result so far: 27842.0
Subtract 46 from 64 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 7:
The number 23 fits into 180 7 times, leaving a remainder of 19.
The number 7 becomes the next digit in our result. 
Result so far: 27842.7
Deduct 161 from 180 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.

Going ahead to step 8:
190 divided by 23 is 8 with a remainder of 6.
Use 8 as the next digit of our solution. 
Result so far: 27842.78
Deduct 184 from 190 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 9:
The number 23 fits into 60 2 times, leaving a remainder of 14.
Write down 2 as next digit of the result. 
Result so far: 27842.782
If we take 46 away from 60, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 10:
If we divide 140 by 23, we get 6 and a remainder of 2.
The number 6 becomes the next digit in our result. 
Result so far: 27842.7826
The remainder is 2 after subtracting 138 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 11:
If we divide 20 by 23, we get 0 and a remainder of 20.
The next digit of our result is 0. 
Result so far: 27842.7826
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 12:
The number 23 fits into 200 8 times, leaving a remainder of 16.
The next digit of our result is 8. 
Result so far: 27842.782608
If we subtract 184 from 200, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 13:
If we divide 160 by 23, we get 6 and a remainder of 22.
Write down 6 as next digit of the result. 
Result so far: 27842.7826086
Deduct 138 from 160 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 14:
The number 23 fits into 220 9 times, leaving a remainder of 13.
The number 9 becomes the next digit in our result. 
Result so far: 27842.78260869
If we take 207 away from 220, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

The final result is 27842.78260869 with a remainder of 1.3e-08.