Let's divide 80878304 by 20
Let's see how many times 20 fits into 80878304.

On to step 1:
20 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Take the next digit (0) from the dividend and append it to 8, then repeat: 80 / 20

Step 2:
If we divide 80 by 20, we get 4 and a remainder of 0.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we subtract 80 from 80, we get 0.
Take the next digit (8) from the dividend and append it to 0, then repeat: 8 / 20

On to step 3:
8 divided by 20 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 40.0
If we subtract 0 from 8, we get 8.
Fetch the next digit (7) from the dividend, attach it to 8 and continue: 87 / 20

Let's proceed to step 4:
87 divided by 20 is 4 with a remainder of 7.
The number 4 becomes the next digit in our result. 
Result so far: 404.0
If we take 80 away from 87, we end up with 7.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 20

Going ahead to step 5:
20 goes into 78 3 times with a remainder of 18.
The next digit of our result is 3. 
Result so far: 4043.0
Subtract 60 from 78 to get 18.
Take the next digit (3) from the dividend and append it to 18, then repeat: 183 / 20

On to step 6:
When dividing 183 by 20, we get 9 with a remainder of 3.
The number 9 becomes the next digit in our result. 
Result so far: 40439.0
The remainder is 3 after subtracting 180 from 183.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 20

Going ahead to step 7:
30 divided by 20 is 1 with a remainder of 10.
The next digit of our result is 1. 
Result so far: 404391.0
Subtract 20 from 30 to get 10.
Take the next digit (4) from the dividend and append it to 10, then repeat: 104 / 20

Let's proceed to step 8:
If we divide 104 by 20, we get 5 and a remainder of 4.
Record the quotient 5 as the next digit in the result. 
Result so far: 4043915.0
Deduct 100 from 104 and we're left 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 9:
The number 20 fits into 40 2 times, leaving a remainder of 0.
The next digit of our result is 2. 
Result so far: 4043915.2
If we take 40 away from 40, 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 10:
0 divided by 20 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 4043915.2
If we take 0 away from 0, 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.

Advancing to step 11:
When dividing 0 by 20, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 4043915.2
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.

In conclusion, the division gives 4043915.2 with a balance of 0.0.