We're dividing 644235 by 71 
We want to figure out the number of times 644235 can be divided by 71.

On to step 1:
6 divided by 71 is 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 71

Going ahead to step 2:
71 can be fit into 64 0 times, resulting in a remainder of 64.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 64, we end up with 64.
Take the next digit (4) from the dividend and append it to 64, then repeat: 644 / 71

On to step 3:
71 can be fit into 644 9 times, resulting in a remainder of 5.
The next digit of our result is 9. 
Result so far: 9.0
If we subtract 639 from 644, we get 5.
Append the next digit (2) from the dividend to 5 and continue with: 52 / 71

Let's proceed to step 4:
If we divide 52 by 71, we get 0 and a remainder of 52.
The number 0 becomes the next digit in our result. 
Result so far: 90.0
The remainder is 52 after subtracting 0 from 52.
Bring next digit (3) of the dividend behind the 52 and repeat the process: 523 / 71

Step 5:
71 goes into 523 7 times with a remainder of 26.
The next digit of our result is 7. 
Result so far: 907.0
The remainder is 26 after subtracting 497 from 523.
Bring next digit (5) of the dividend behind the 26 and repeat the process: 265 / 71

Moving on to step 6:
71 goes into 265 3 times with a remainder of 52.
Use 3 as the next digit of our solution. 
Result so far: 9073.0
The remainder is 52 after subtracting 213 from 265.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

On to step 7:
71 goes into 520 7 times with a remainder of 23.
Write down 7 as next digit of the result. 
Result so far: 9073.7
If we subtract 497 from 520, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 8:
230 divided by 71 is 3 with a remainder of 17.
The next digit of our result is 3. 
Result so far: 9073.73
Subtract 213 from 230 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 9:
When dividing 170 by 71, we get 2 with a remainder of 28.
The number 2 becomes the next digit in our result. 
Result so far: 9073.732
If we take 142 away from 170, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 10:
71 goes into 280 3 times with a remainder of 67.
The number 3 becomes the next digit in our result. 
Result so far: 9073.7323
Subtract 213 from 280 to get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Going ahead to step 11:
71 goes into 670 9 times with a remainder of 31.
The next digit of our result is 9. 
Result so far: 9073.73239
If we subtract 639 from 670, we get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Advancing to step 12:
If we divide 310 by 71, we get 4 and a remainder of 26.
Use 4 as the next digit of our solution. 
Result so far: 9073.732394
The remainder is 26 after subtracting 284 from 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Going ahead to step 13:
71 can be fit into 260 3 times, resulting in a remainder of 47.
The next digit of our result is 3. 
Result so far: 9073.7323943
The remainder is 47 after subtracting 213 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Advancing to step 14:
If we divide 470 by 71, we get 6 and a remainder of 44.
Record the quotient 6 as the next digit in the result. 
Result so far: 9073.73239436
Subtracting 426 from 470 leaves us 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 9073.73239436 with a remaining 4.4e-08.