Let's divide 641230 by 16
We're looking to find how many times 16 goes into 641230.

On to step 1:
The number 16 fits into 6 0 times, leaving a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 16

On to step 2:
64 divided by 16 is 4 with a remainder of 0.
The next digit of our result is 4. 
Result so far: 4.0
If we take 64 away from 64, we end up with 0.
Include the next digit (1) from the dividend after 0, then repeat: 1 / 16

Step 3:
1 divided by 16 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 40.0
If we take 0 away from 1, we end up with 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 16

Step 4:
16 can be fit into 12 0 times, resulting in a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 400.0
The remainder is 12 after subtracting 0 from 12.
Bring next digit (3) of the dividend behind the 12 and repeat the process: 123 / 16

Step 5:
16 goes into 123 7 times with a remainder of 11.
Use 7 as the next digit of our solution. 
Result so far: 4007.0
If we subtract 112 from 123, we get 11.
Bring next digit (0) of the dividend behind the 11 and repeat the process: 110 / 16

Going ahead to step 6:
The number 16 fits into 110 6 times, leaving a remainder of 14.
The number 6 becomes the next digit in our result. 
Result so far: 40076.0
If we take 96 away from 110, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 7:
The number 16 fits into 140 8 times, leaving a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 40076.8
If we subtract 128 from 140, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 8:
16 can be fit into 120 7 times, resulting in a remainder of 8.
The number 7 becomes the next digit in our result. 
Result so far: 40076.87
Subtract 112 from 120 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 9:
The number 16 fits into 80 5 times, leaving a remainder of 0.
The next digit of our result is 5. 
Result so far: 40076.875
The remainder is 0 after subtracting 80 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 10:
16 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 40076.875
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 11:
The number 16 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 40076.875
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 40076.875 and a remainder of 0.0.