We divide 76821 by 20
We want to divide 76821 by 20.

Moving on to step 1:
7 divided by 20 is 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Take the next digit (6) from the dividend and append it to 7, then repeat: 76 / 20

Moving on to step 2:
If we divide 76 by 20, we get 3 and a remainder of 16.
Use 3 as the next digit of our solution. 
Result so far: 3.0
The remainder is 16 after subtracting 60 from 76.
Fetch the next digit (8) from the dividend, attach it to 16 and continue: 168 / 20

Let's proceed to step 3:
168 divided by 20 is 8 with a remainder of 8.
Use 8 as the next digit of our solution. 
Result so far: 38.0
If we take 160 away from 168, we end up with 8.
Append the next digit (2) from the dividend to 8 and continue with: 82 / 20

Moving on to step 4:
20 goes into 82 4 times with a remainder of 2.
Use 4 as the next digit of our solution. 
Result so far: 384.0
If we subtract 80 from 82, we get 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 20

Let's proceed to step 5:
If we divide 21 by 20, we get 1 and a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 3841.0
Deduct 20 from 21 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.

Step 6:
The number 20 fits into 10 0 times, leaving a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 3841.0
If we subtract 0 from 10, 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.

Let's proceed to step 7:
20 can be fit into 100 5 times, resulting in a remainder of 0.
The next digit of our result is 5. 
Result so far: 3841.05
If we take 100 away from 100, we end up 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.

On to step 8:
20 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 3841.05
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.

On to step 9:
If we divide 0 by 20, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 3841.05
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 3841.05, with a leftover of 0.0.