We're dividing 643483 by 72 
Let's see how many times 72 fits into 643483.

Step 1:
72 can be fit into 6 0 times, resulting in a remainder of 6.
The next digit of our result is 0. 
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 / 72

Advancing to step 2:
72 goes into 64 0 times with a remainder of 64.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 64 to get 64.
Bring next digit (3) of the dividend behind the 64 and repeat the process: 643 / 72

Step 3:
72 goes into 643 8 times with a remainder of 67.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Subtracting 576 from 643 leaves us with 67.
Grab the next digit (4) from the dividend, add it to 67, then carry on: 674 / 72

Let's proceed to step 4:
72 can be fit into 674 9 times, resulting in a remainder of 26.
Put 9 as the next digit of the answer. 
Result so far: 89.0
Deduct 648 from 674 and we're left with 26.
Include the next digit (8) from the dividend after 26, then repeat: 268 / 72

Let's proceed to step 5:
The number 72 fits into 268 3 times, leaving a remainder of 52.
Put 3 as the next digit of the answer. 
Result so far: 893.0
Subtract 216 from 268 to get 52.
Grab the next digit (3) from the dividend, add it to 52, then carry on: 523 / 72

Let's proceed to step 6:
523 divided by 72 is 7 with a remainder of 19.
Use 7 as the next digit of our solution. 
Result so far: 8937.0
If we take 504 away from 523, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 7:
72 can be fit into 190 2 times, resulting in a remainder of 46.
Write down 2 as next digit of the result. 
Result so far: 8937.2
Deduct 144 from 190 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Step 8:
72 goes into 460 6 times with a remainder of 28.
The next digit of our result is 6. 
Result so far: 8937.26
Subtract 432 from 460 to get 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 9:
If we divide 280 by 72, we get 3 and a remainder of 64.
The next digit of our result is 3. 
Result so far: 8937.263
Deduct 216 from 280 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 10:
When dividing 640 by 72, we get 8 with a remainder of 64.
Write down 8 as next digit of the result. 
Result so far: 8937.2638
The remainder is 64 after subtracting 576 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 11:
The number 72 fits into 640 8 times, leaving a remainder of 64.
Record the quotient 8 as the next digit in the result. 
Result so far: 8937.26388
Deduct 576 from 640 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

The quotient of the division is 8937.26388, and the remainder is 6.4e-05.