Let's divide 639958 by 65
We want to divide 639958 by 65.

Going ahead to step 1:
If we divide 6 by 65, we get 0 and a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 65

Advancing to step 2:
When dividing 63 by 65, we get 0 with a remainder of 63.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 63, we get 63.
Take the next digit (9) from the dividend and append it to 63, then repeat: 639 / 65

Advancing to step 3:
If we divide 639 by 65, we get 9 and a remainder of 54.
Write down 9 as next digit of the result. 
Result so far: 9.0
The remainder is 54 after subtracting 585 from 639.
Bring next digit (9) of the dividend behind the 54 and repeat the process: 549 / 65

Going ahead to step 4:
If we divide 549 by 65, we get 8 and a remainder of 29.
The number 8 becomes the next digit in our result. 
Result so far: 98.0
Subtract 520 from 549 to get 29.
Take the next digit (5) from the dividend and append it to 29, then repeat: 295 / 65

Going ahead to step 5:
The number 65 fits into 295 4 times, leaving a remainder of 35.
Use 4 as the next digit of our solution. 
Result so far: 984.0
Subtract 260 from 295 to get 35.
Append the next digit (8) from the dividend to 35 and continue with: 358 / 65

Moving on to step 6:
When dividing 358 by 65, we get 5 with a remainder of 33.
Record the quotient 5 as the next digit in the result. 
Result so far: 9845.0
If we take 325 away from 358, we end up with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 7:
When dividing 330 by 65, we get 5 with a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 9845.5
If we subtract 325 from 330, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 8:
The number 65 fits into 50 0 times, leaving a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 9845.5
Deduct 0 from 50 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 9:
500 divided by 65 is 7 with a remainder of 45.
Use 7 as the next digit of our solution. 
Result so far: 9845.507
If we take 455 away from 500, we end up with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

On to step 10:
65 goes into 450 6 times with a remainder of 60.
Use 6 as the next digit of our solution. 
Result so far: 9845.5076
The remainder is 60 after subtracting 390 from 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 11:
The number 65 fits into 600 9 times, leaving a remainder of 15.
Use 9 as the next digit of our solution. 
Result so far: 9845.50769
If we subtract 585 from 600, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 12:
If we divide 150 by 65, we get 2 and a remainder of 20.
Use 2 as the next digit of our solution. 
Result so far: 9845.507692
Deduct 130 from 150 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 13:
The number 65 fits into 200 3 times, leaving a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 9845.5076923
If we subtract 195 from 200, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 14:
65 can be fit into 50 0 times, resulting in a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 9845.5076923
The remainder is 50 after subtracting 0 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Our division results in 9845.5076923 with a remaining 5e-08.