We're dividing 640295 by 51 
We want to divide 640295 by 51.

On to step 1:
If we divide 6 by 51, we get 0 and 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.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 51

On to step 2:
If we divide 64 by 51, we get 1 and a remainder of 13.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 51 from 64 and we're left with 13.
Bring next digit (0) of the dividend behind the 13 and repeat the process: 130 / 51

Moving on to step 3:
The number 51 fits into 130 2 times, leaving a remainder of 28.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
The remainder is 28 after subtracting 102 from 130.
Take the next digit (2) from the dividend and append it to 28, then repeat: 282 / 51

Moving on to step 4:
The number 51 fits into 282 5 times, leaving a remainder of 27.
Record the quotient 5 as the next digit in the result. 
Result so far: 125.0
Subtract 255 from 282 to get 27.
Append the next digit (9) from the dividend to 27 and continue with: 279 / 51

Let's proceed to step 5:
When dividing 279 by 51, we get 5 with a remainder of 24.
Record the quotient 5 as the next digit in the result. 
Result so far: 1255.0
Subtract 255 from 279 to get 24.
Append the next digit (5) from the dividend to 24 and continue with: 245 / 51

Let's proceed to step 6:
245 divided by 51 is 4 with a remainder of 41.
Use 4 as the next digit of our solution. 
Result so far: 12554.0
Subtract 204 from 245 to get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Moving on to step 7:
51 can be fit into 410 8 times, resulting in a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 12554.8
Deduct 408 from 410 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 8:
20 divided by 51 is 0 with a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 12554.8
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 9:
If we divide 200 by 51, we get 3 and a remainder of 47.
Write down 3 as next digit of the result. 
Result so far: 12554.803
If we subtract 153 from 200, we get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Moving on to step 10:
When dividing 470 by 51, we get 9 with a remainder of 11.
Record the quotient 9 as the next digit in the result. 
Result so far: 12554.8039
If we take 459 away from 470, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 11:
If we divide 110 by 51, we get 2 and a remainder of 8.
The next digit of our result is 2. 
Result so far: 12554.80392
Subtracting 102 from 110 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 12:
If we divide 80 by 51, we get 1 and a remainder of 29.
Put 1 as the next digit of the answer. 
Result so far: 12554.803921
If we subtract 51 from 80, we get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Let's proceed to step 13:
51 goes into 290 5 times with a remainder of 35.
Put 5 as the next digit of the answer. 
Result so far: 12554.8039215
If we subtract 255 from 290, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 14:
The number 51 fits into 350 6 times, leaving a remainder of 44.
Record the quotient 6 as the next digit in the result. 
Result so far: 12554.80392156
If we take 306 away from 350, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Our division results in 12554.80392156 with a remaining 4.4e-08.