We divide 641545 by 16
Let's see how many times 16 fits into 641545.

Moving on to step 1:
When dividing 6 by 16, we get 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 16

Moving on to step 2:
16 goes into 64 4 times with a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Deduct 64 from 64 and we're left with 0.
Fetch the next digit (1) from the dividend, attach it to 0 and continue: 1 / 16

Going ahead to step 3:
16 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 40.0
Subtract 0 from 1 to get 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 16

On to step 4:
If we divide 15 by 16, we get 0 and a remainder of 15.
The next digit of our result is 0. 
Result so far: 400.0
If we subtract 0 from 15, we get 15.
Bring next digit (4) of the dividend behind the 15 and repeat the process: 154 / 16

On to step 5:
16 goes into 154 9 times with a remainder of 10.
Use 9 as the next digit of our solution. 
Result so far: 4009.0
Subtracting 144 from 154 leaves us with 10.
Fetch the next digit (5) from the dividend, attach it to 10 and continue: 105 / 16

On to step 6:
16 goes into 105 6 times with a remainder of 9.
Record the quotient 6 as the next digit in the result. 
Result so far: 40096.0
If we subtract 96 from 105, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 7:
16 goes into 90 5 times with a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 40096.5
Deduct 80 from 90 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
100 divided by 16 is 6 with a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 40096.56
Subtracting 96 from 100 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 9:
If we divide 40 by 16, we get 2 and a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 40096.562
If we take 32 away from 40, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 10:
The number 16 fits into 80 5 times, leaving a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 40096.5625
Subtracting 80 from 80 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.

Let's proceed to step 11:
The number 16 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 40096.5625
Subtract 0 from 0 to 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.

Step 12:
16 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 40096.5625
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.

The quotient of the division is 40096.5625, and the remainder is 0.0.