Let's divide 31313723 by 640
We're looking to find how many times 640 goes into 31313723.

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
Deduct 0 from 3 and we're left with 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 640

Let's proceed to step 2:
The number 640 fits into 31 0 times, leaving a remainder of 31.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 31 and we're left with 31.
Fetch the next digit (3) from the dividend, attach it to 31 and continue: 313 / 640

Moving on to step 3:
If we divide 313 by 640, we get 0 and a remainder of 313.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 313 leaves us with 313.
Append the next digit (1) from the dividend to 313 and continue with: 3131 / 640

Step 4:
640 can be fit into 3131 4 times, resulting in a remainder of 571.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Subtracting 2560 from 3131 leaves us with 571.
Bring next digit (3) of the dividend behind the 571 and repeat the process: 5713 / 640

On to step 5:
When dividing 5713 by 640, we get 8 with a remainder of 593.
The number 8 becomes the next digit in our result. 
Result so far: 48.0
Subtracting 5120 from 5713 leaves us with 593.
Bring next digit (7) of the dividend behind the 593 and repeat the process: 5937 / 640

Going ahead to step 6:
640 can be fit into 5937 9 times, resulting in a remainder of 177.
The number 9 becomes the next digit in our result. 
Result so far: 489.0
Deduct 5760 from 5937 and we're left with 177.
Grab the next digit (2) from the dividend, add it to 177, then carry on: 1772 / 640

Let's proceed to step 7:
When dividing 1772 by 640, we get 2 with a remainder of 492.
Use 2 as the next digit of our solution. 
Result so far: 4892.0
If we subtract 1280 from 1772, we get 492.
Take the next digit (3) from the dividend and append it to 492, then repeat: 4923 / 640

Going ahead to step 8:
The number 640 fits into 4923 7 times, leaving a remainder of 443.
The number 7 becomes the next digit in our result. 
Result so far: 48927.0
Subtract 4480 from 4923 to get 443.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4430, and continue the process.

On to step 9:
640 goes into 4430 6 times with a remainder of 590.
Write down 6 as next digit of the result. 
Result so far: 48927.6
Subtracting 3840 from 4430 leaves us with 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5900, and continue the process.

Step 10:
640 goes into 5900 9 times with a remainder of 140.
Use 9 as the next digit of our solution. 
Result so far: 48927.69
Subtract 5760 from 5900 to get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Moving on to step 11:
640 can be fit into 1400 2 times, resulting in a remainder of 120.
Use 2 as the next digit of our solution. 
Result so far: 48927.692
The remainder is 120 after subtracting 1280 from 1400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Moving on to step 12:
The number 640 fits into 1200 1 times, leaving a remainder of 560.
Write down 1 as next digit of the result. 
Result so far: 48927.6921
If we subtract 640 from 1200, we get 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Advancing to step 13:
5600 divided by 640 is 8 with a remainder of 480.
Use 8 as the next digit of our solution. 
Result so far: 48927.69218
If we subtract 5120 from 5600, we get 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Let's proceed to step 14:
4800 divided by 640 is 7 with a remainder of 320.
Put 7 as the next digit of the answer. 
Result so far: 48927.692187
Subtracting 4480 from 4800 leaves us with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Let's proceed to step 15:
640 goes into 3200 5 times with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 48927.6921875
The remainder is 0 after subtracting 3200 from 3200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 16:
640 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 48927.6921875
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 48927.6921875 with a remaining 0.0.