We're dividing 667721 by 16 
We want to divide 667721 by 16.

Going ahead to step 1:
If we divide 6 by 16, we get 0 and a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 16

Moving on to step 2:
16 goes into 66 4 times with a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtract 64 from 66 to get 2.
Append the next digit (7) from the dividend to 2 and continue with: 27 / 16

On to step 3:
27 divided by 16 is 1 with a remainder of 11.
The next digit of our result is 1. 
Result so far: 41.0
If we subtract 16 from 27, we get 11.
Take the next digit (7) from the dividend and append it to 11, then repeat: 117 / 16

On to step 4:
117 divided by 16 is 7 with a remainder of 5.
The number 7 becomes the next digit in our result. 
Result so far: 417.0
Subtract 112 from 117 to get 5.
Take the next digit (2) from the dividend and append it to 5, then repeat: 52 / 16

On to step 5:
The number 16 fits into 52 3 times, leaving a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 4173.0
The remainder is 4 after subtracting 48 from 52.
Include the next digit (1) from the dividend after 4, then repeat: 41 / 16

Step 6:
When dividing 41 by 16, we get 2 with a remainder of 9.
The next digit of our result is 2. 
Result so far: 41732.0
Subtract 32 from 41 to 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.

Step 7:
The number 16 fits into 90 5 times, leaving a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 41732.5
If we subtract 80 from 90, we 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.

Advancing to step 8:
The number 16 fits into 100 6 times, leaving a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 41732.56
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.

Advancing to step 9:
16 goes into 40 2 times with a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 41732.562
Deduct 32 from 40 and we're left 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.

Let's proceed to step 10:
When dividing 80 by 16, we get 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 41732.5625
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.

Moving on to step 11:
16 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 41732.5625
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.

Let's proceed to 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: 41732.5625
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 final outcome is 41732.5625, with a leftover of 0.0.