We divide 30647893 by 640
We're looking to find how many times 640 goes into 30647893.

On to step 1:
640 goes into 3 0 times with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Fetch the next digit (0) from the dividend, attach it to 3 and continue: 30 / 640

Step 2:
The number 640 fits into 30 0 times, leaving a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 30 leaves us with 30.
Take the next digit (6) from the dividend and append it to 30, then repeat: 306 / 640

Step 3:
If we divide 306 by 640, we get 0 and a remainder of 306.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 306 leaves us with 306.
Bring next digit (4) of the dividend behind the 306 and repeat the process: 3064 / 640

Step 4:
The number 640 fits into 3064 4 times, leaving a remainder of 504.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
The remainder is 504 after subtracting 2560 from 3064.
Take the next digit (7) from the dividend and append it to 504, then repeat: 5047 / 640

Going ahead to step 5:
5047 divided by 640 is 7 with a remainder of 567.
Use 7 as the next digit of our solution. 
Result so far: 47.0
The remainder is 567 after subtracting 4480 from 5047.
Include the next digit (8) from the dividend after 567, then repeat: 5678 / 640

Moving on to step 6:
If we divide 5678 by 640, we get 8 and a remainder of 558.
The number 8 becomes the next digit in our result. 
Result so far: 478.0
The remainder is 558 after subtracting 5120 from 5678.
Fetch the next digit (9) from the dividend, attach it to 558 and continue: 5589 / 640

Advancing to step 7:
When dividing 5589 by 640, we get 8 with a remainder of 469.
The next digit of our result is 8. 
Result so far: 4788.0
If we subtract 5120 from 5589, we get 469.
Include the next digit (3) from the dividend after 469, then repeat: 4693 / 640

Advancing to step 8:
When dividing 4693 by 640, we get 7 with a remainder of 213.
Write down 7 as next digit of the result. 
Result so far: 47887.0
Deduct 4480 from 4693 and we're left with 213.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2130, and continue the process.

On to step 9:
If we divide 2130 by 640, we get 3 and a remainder of 210.
Write down 3 as next digit of the result. 
Result so far: 47887.3
If we subtract 1920 from 2130, we get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Step 10:
640 can be fit into 2100 3 times, resulting in a remainder of 180.
Write down 3 as next digit of the result. 
Result so far: 47887.33
If we subtract 1920 from 2100, we get 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

In conclusion, the division gives 47887.33 with a balance of 0.18.