646699 ÷ 72 
We want to figure out the number of times 646699 can be divided by 72.

Going ahead to step 1:
6 divided by 72 is 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 72

On to step 2:
72 can be fit into 64 0 times, resulting in a remainder of 64.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 64 to get 64.
Take the next digit (6) from the dividend and append it to 64, then repeat: 646 / 72

Going ahead to step 3:
If we divide 646 by 72, we get 8 and a remainder of 70.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtracting 576 from 646 leaves us with 70.
Bring next digit (6) of the dividend behind the 70 and repeat the process: 706 / 72

On to step 4:
The number 72 fits into 706 9 times, leaving a remainder of 58.
Put 9 as the next digit of the answer. 
Result so far: 89.0
If we take 648 away from 706, we end up with 58.
Include the next digit (9) from the dividend after 58, then repeat: 589 / 72

Let's proceed to step 5:
If we divide 589 by 72, we get 8 and a remainder of 13.
The next digit of our result is 8. 
Result so far: 898.0
Subtract 576 from 589 to get 13.
Fetch the next digit (9) from the dividend, attach it to 13 and continue: 139 / 72

Let's proceed to step 6:
139 divided by 72 is 1 with a remainder of 67.
Write down 1 as next digit of the result. 
Result so far: 8981.0
Subtracting 72 from 139 leaves us with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

On to step 7:
72 can be fit into 670 9 times, resulting in a remainder of 22.
The number 9 becomes the next digit in our result. 
Result so far: 8981.9
The remainder is 22 after subtracting 648 from 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 8:
220 divided by 72 is 3 with a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 8981.93
Subtract 216 from 220 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 9:
72 can be fit into 40 0 times, resulting in a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 8981.93
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 10:
If we divide 400 by 72, we get 5 and a remainder of 40.
Put 5 as the next digit of the answer. 
Result so far: 8981.9305
The remainder is 40 after subtracting 360 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 11:
400 divided by 72 is 5 with a remainder of 40.
The next digit of our result is 5. 
Result so far: 8981.93055
Deduct 360 from 400 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The quotient of the division is 8981.93055, and the remainder is 4e-05.