643344 divided by 73 
Let's see how many times 73 fits into 643344.

Moving on to step 1:
The number 73 fits into 6 0 times, leaving a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 73

Going ahead to step 2:
The number 73 fits into 64 0 times, leaving a remainder of 64.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 64 and we're left with 64.
Append the next digit (3) from the dividend to 64 and continue with: 643 / 73

Advancing to step 3:
The number 73 fits into 643 8 times, leaving a remainder of 59.
The next digit of our result is 8. 
Result so far: 8.0
Deduct 584 from 643 and we're left with 59.
Include the next digit (3) from the dividend after 59, then repeat: 593 / 73

Moving on to step 4:
73 goes into 593 8 times with a remainder of 9.
Record the quotient 8 as the next digit in the result. 
Result so far: 88.0
The remainder is 9 after subtracting 584 from 593.
Grab the next digit (4) from the dividend, add it to 9, then carry on: 94 / 73

Moving on to step 5:
If we divide 94 by 73, we get 1 and a remainder of 21.
Use 1 as the next digit of our solution. 
Result so far: 881.0
If we subtract 73 from 94, we get 21.
Take the next digit (4) from the dividend and append it to 21, then repeat: 214 / 73

Let's proceed to step 6:
When dividing 214 by 73, we get 2 with a remainder of 68.
Put 2 as the next digit of the answer. 
Result so far: 8812.0
Subtract 146 from 214 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Step 7:
680 divided by 73 is 9 with a remainder of 23.
Write down 9 as next digit of the result. 
Result so far: 8812.9
Subtract 657 from 680 to 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.

On to step 8:
73 goes into 230 3 times with a remainder of 11.
Use 3 as the next digit of our solution. 
Result so far: 8812.93
Subtract 219 from 230 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 9:
When dividing 110 by 73, we get 1 with a remainder of 37.
Put 1 as the next digit of the answer. 
Result so far: 8812.931
Deduct 73 from 110 and we're left with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Moving on to step 10:
73 goes into 370 5 times with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 8812.9315
If we take 365 away from 370, we end up 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.

Let's proceed to step 11:
73 can be fit into 50 0 times, resulting in a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 8812.9315
If we take 0 away from 50, we end up 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.

On to step 12:
If we divide 500 by 73, we get 6 and a remainder of 62.
The number 6 becomes the next digit in our result. 
Result so far: 8812.931506
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.

Advancing to step 13:
The number 73 fits into 620 8 times, leaving a remainder of 36.
Record the quotient 8 as the next digit in the result. 
Result so far: 8812.9315068
The remainder is 36 after subtracting 584 from 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 14:
73 goes into 360 4 times with a remainder of 68.
Record the quotient 4 as the next digit in the result. 
Result so far: 8812.93150684
Subtract 292 from 360 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

After the division, we end up with 8812.93150684 and a remainder of 6.8e-08.