263121 divided by 16 
Let's see how many times 16 fits into 263121.

Let's proceed to step 1:
16 can be fit into 2 0 times, resulting in a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Bring next digit (6) of the dividend behind the 2 and repeat the process: 26 / 16

Moving on to step 2:
26 divided by 16 is 1 with a remainder of 10.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 16 from 26 leaves us with 10.
Include the next digit (3) from the dividend after 10, then repeat: 103 / 16

Advancing to step 3:
16 can be fit into 103 6 times, resulting in a remainder of 7.
Put 6 as the next digit of the answer. 
Result so far: 16.0
The remainder is 7 after subtracting 96 from 103.
Fetch the next digit (1) from the dividend, attach it to 7 and continue: 71 / 16

Step 4:
71 divided by 16 is 4 with a remainder of 7.
Record the quotient 4 as the next digit in the result. 
Result so far: 164.0
If we subtract 64 from 71, we get 7.
Grab the next digit (2) from the dividend, add it to 7, then carry on: 72 / 16

Step 5:
When dividing 72 by 16, we get 4 with a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 1644.0
The remainder is 8 after subtracting 64 from 72.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 16

Let's proceed to step 6:
If we divide 81 by 16, we get 5 and a remainder of 1.
Put 5 as the next digit of the answer. 
Result so far: 16445.0
Deduct 80 from 81 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
The number 16 fits into 10 0 times, leaving a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 16445.0
Deduct 0 from 10 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.

Let's proceed to step 8:
When dividing 100 by 16, we get 6 with a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 16445.06
If we subtract 96 from 100, we 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.

Going ahead to step 9:
16 can be fit into 40 2 times, resulting in a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 16445.062
Subtract 32 from 40 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.

Moving on to step 10:
16 can be fit into 80 5 times, resulting in a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 16445.0625
Subtract 80 from 80 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.

Let's proceed to step 11:
16 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 16445.0625
Deduct 0 from 0 and we're left 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 12:
When dividing 0 by 16, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 16445.0625
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.

After the division, we end up with 16445.0625 and a remainder of 0.0.