644084 ÷ 73 
We want to divide 644084 by 73.

Going ahead to step 1:
The number 73 fits into 6 0 times, leaving 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.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 73

On to step 2:
When dividing 64 by 73, we get 0 with a remainder of 64.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 64, we get 64.
Include the next digit (4) from the dividend after 64, then repeat: 644 / 73

Advancing to step 3:
73 goes into 644 8 times with a remainder of 60.
The next digit of our result is 8. 
Result so far: 8.0
Subtract 584 from 644 to get 60.
Grab the next digit (0) from the dividend, add it to 60, then carry on: 600 / 73

Step 4:
73 can be fit into 600 8 times, resulting in a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 88.0
Subtract 584 from 600 to get 16.
Fetch the next digit (8) from the dividend, attach it to 16 and continue: 168 / 73

On to step 5:
73 can be fit into 168 2 times, resulting in a remainder of 22.
The next digit of our result is 2. 
Result so far: 882.0
Subtract 146 from 168 to get 22.
Bring next digit (4) of the dividend behind the 22 and repeat the process: 224 / 73

Moving on to step 6:
If we divide 224 by 73, we get 3 and a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 8823.0
If we subtract 219 from 224, 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 7:
50 divided by 73 is 0 with a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 8823.0
Subtracting 0 from 50 leaves us 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 8:
73 can be fit into 500 6 times, resulting in a remainder of 62.
Put 6 as the next digit of the answer. 
Result so far: 8823.06
If we subtract 438 from 500, we get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Going ahead to step 9:
The number 73 fits into 620 8 times, leaving a remainder of 36.
Write down 8 as next digit of the result. 
Result so far: 8823.068
Deduct 584 from 620 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 10:
360 divided by 73 is 4 with a remainder of 68.
Write down 4 as next digit of the result. 
Result so far: 8823.0684
Deduct 292 from 360 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Going ahead to step 11:
680 divided by 73 is 9 with a remainder of 23.
The next digit of our result is 9. 
Result so far: 8823.06849
Subtracting 657 from 680 leaves us with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 12:
230 divided by 73 is 3 with a remainder of 11.
Record the quotient 3 as the next digit in the result. 
Result so far: 8823.068493
Deduct 219 from 230 and we're left 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.

Advancing to step 13:
73 goes into 110 1 times with a remainder of 37.
The next digit of our result is 1. 
Result so far: 8823.0684931
If we subtract 73 from 110, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Let's proceed to step 14:
If we divide 370 by 73, we get 5 and a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 8823.06849315
Subtracting 365 from 370 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

After the division, we end up with 8823.06849315 and a remainder of 5e-09.