21280746 ÷ 16 
We want to divide 21280746 by 16.

Going ahead to step 1:
When dividing 2 by 16, we get 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 16

On to step 2:
16 goes into 21 1 times with a remainder of 5.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 16 away from 21, we end up with 5.
Fetch the next digit (2) from the dividend, attach it to 5 and continue: 52 / 16

Going ahead to step 3:
When dividing 52 by 16, we get 3 with a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 13.0
Subtract 48 from 52 to get 4.
Append the next digit (8) from the dividend to 4 and continue with: 48 / 16

Moving on to step 4:
48 divided by 16 is 3 with a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 133.0
The remainder is 0 after subtracting 48 from 48.
Append the next digit (0) from the dividend to 0 and continue with: 0 / 16

On to step 5:
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: 1330.0
If we take 0 away from 0, we end up with 0.
Grab the next digit (7) from the dividend, add it to 0, then carry on: 7 / 16

Moving on to step 6:
If we divide 7 by 16, we get 0 and a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 13300.0
Subtracting 0 from 7 leaves us with 7.
Fetch the next digit (4) from the dividend, attach it to 7 and continue: 74 / 16

Step 7:
If we divide 74 by 16, we get 4 and a remainder of 10.
Write down 4 as next digit of the result. 
Result so far: 133004.0
The remainder is 10 after subtracting 64 from 74.
Fetch the next digit (6) from the dividend, attach it to 10 and continue: 106 / 16

Moving on to step 8:
The number 16 fits into 106 6 times, leaving a remainder of 10.
Use 6 as the next digit of our solution. 
Result so far: 1330046.0
Subtract 96 from 106 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 9:
100 divided by 16 is 6 with a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 1330046.6
If we take 96 away from 100, we end up 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.

On to step 10:
16 goes into 40 2 times with a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 1330046.62
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.

Let's proceed to step 11:
16 can be fit into 80 5 times, resulting in a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 1330046.625
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.

Moving on to step 12:
The number 16 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 1330046.625
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 13:
If we divide 0 by 16, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 1330046.625
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.

Our division results in 1330046.625 with a remaining 0.0.