307504 ÷ 20 
We want to figure out the number of times 307504 can be divided by 20.

On to step 1:
3 divided by 20 is 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 20

Advancing to step 2:
20 can be fit into 30 1 times, resulting in a remainder of 10.
The next digit of our result is 1. 
Result so far: 1.0
If we take 20 away from 30, we end up with 10.
Take the next digit (7) from the dividend and append it to 10, then repeat: 107 / 20

Advancing to step 3:
The number 20 fits into 107 5 times, leaving a remainder of 7.
Write down 5 as next digit of the result. 
Result so far: 15.0
Deduct 100 from 107 and we're left with 7.
Grab the next digit (5) from the dividend, add it to 7, then carry on: 75 / 20

Going ahead to step 4:
If we divide 75 by 20, we get 3 and a remainder of 15.
The next digit of our result is 3. 
Result so far: 153.0
If we take 60 away from 75, we end up with 15.
Take the next digit (0) from the dividend and append it to 15, then repeat: 150 / 20

Going ahead to step 5:
The number 20 fits into 150 7 times, leaving a remainder of 10.
Record the quotient 7 as the next digit in the result. 
Result so far: 1537.0
Deduct 140 from 150 and we're left with 10.
Fetch the next digit (4) from the dividend, attach it to 10 and continue: 104 / 20

Advancing to step 6:
If we divide 104 by 20, we get 5 and a remainder of 4.
Write down 5 as next digit of the result. 
Result so far: 15375.0
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.

Let's proceed to step 7:
The number 20 fits into 40 2 times, leaving a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 15375.2
The remainder is 0 after subtracting 40 from 40.
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:
If we divide 0 by 20, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 15375.2
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.

Advancing to step 9:
When dividing 0 by 20, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 15375.2
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.

The quotient of the division is 15375.2, and the remainder is 0.0.