806821 ÷ 16 
Our goal is to divide 806821 by 16.

Advancing to step 1:
16 goes into 8 0 times with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (0) from the dividend, add it to 8, then carry on: 80 / 16

Going ahead to step 2:
80 divided by 16 is 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 5.0
If we take 80 away from 80, we end up with 0.
Grab the next digit (6) from the dividend, add it to 0, then carry on: 6 / 16

Moving on to step 3:
If we divide 6 by 16, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 50.0
If we take 0 away from 6, we end up with 6.
Append the next digit (8) from the dividend to 6 and continue with: 68 / 16

On to step 4:
The number 16 fits into 68 4 times, leaving a remainder of 4.
Record the quotient 4 as the next digit in the result. 
Result so far: 504.0
Subtract 64 from 68 to get 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 16

On to step 5:
16 goes into 42 2 times with a remainder of 10.
Write down 2 as next digit of the result. 
Result so far: 5042.0
If we subtract 32 from 42, we get 10.
Take the next digit (1) from the dividend and append it to 10, then repeat: 101 / 16

Going ahead to step 6:
When dividing 101 by 16, we get 6 with a remainder of 5.
Write down 6 as next digit of the result. 
Result so far: 50426.0
The remainder is 5 after subtracting 96 from 101.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 7:
50 divided by 16 is 3 with a remainder of 2.
Record the quotient 3 as the next digit in the result. 
Result so far: 50426.3
The remainder is 2 after subtracting 48 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 8:
When dividing 20 by 16, we get 1 with a remainder of 4.
Put 1 as the next digit of the answer. 
Result so far: 50426.31
If we subtract 16 from 20, 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.

On to step 9:
If we divide 40 by 16, we get 2 and a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 50426.312
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 10:
16 goes into 80 5 times with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 50426.3125
The remainder is 0 after subtracting 80 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 11:
16 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 50426.3125
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.

Going ahead to step 12:
16 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 50426.3125
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.

The final result is 50426.3125 with a remainder of 0.0.