72921 divided by 16 
Let's see how many times 16 fits into 72921.

Advancing to step 1:
16 goes into 7 0 times with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Append the next digit (2) from the dividend to 7 and continue with: 72 / 16

Let's proceed to step 2:
If we divide 72 by 16, we get 4 and a remainder of 8.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtract 64 from 72 to get 8.
Take the next digit (9) from the dividend and append it to 8, then repeat: 89 / 16

Let's proceed to step 3:
89 divided by 16 is 5 with a remainder of 9.
Put 5 as the next digit of the answer. 
Result so far: 45.0
The remainder is 9 after subtracting 80 from 89.
Bring next digit (2) of the dividend behind the 9 and repeat the process: 92 / 16

On to step 4:
16 goes into 92 5 times with a remainder of 12.
Write down 5 as next digit of the result. 
Result so far: 455.0
Subtracting 80 from 92 leaves us with 12.
Include the next digit (1) from the dividend after 12, then repeat: 121 / 16

Going ahead to step 5:
If we divide 121 by 16, we get 7 and a remainder of 9.
Record the quotient 7 as the next digit in the result. 
Result so far: 4557.0
The remainder is 9 after subtracting 112 from 121.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 6:
The number 16 fits into 90 5 times, leaving a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 4557.5
Subtract 80 from 90 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.

Let's proceed to step 7:
16 goes into 100 6 times with a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 4557.56
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.

Advancing to step 8:
40 divided by 16 is 2 with a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 4557.562
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 9:
80 divided by 16 is 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 4557.5625
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.

Advancing to step 10:
0 divided by 16 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 4557.5625
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.

Advancing to step 11:
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: 4557.5625
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.

The final outcome is 4557.5625, with a leftover of 0.0.