20307 ÷ 53 
We want to figure out the number of times 20307 can be divided by 53.

On to step 1:
2 divided by 53 is 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 53

On to step 2:
20 divided by 53 is 0 with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 20 after subtracting 0 from 20.
Take the next digit (3) from the dividend and append it to 20, then repeat: 203 / 53

Going ahead to step 3:
If we divide 203 by 53, we get 3 and a remainder of 44.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we take 159 away from 203, we end up with 44.
Include the next digit (0) from the dividend after 44, then repeat: 440 / 53

On to step 4:
53 goes into 440 8 times with a remainder of 16.
The next digit of our result is 8. 
Result so far: 38.0
The remainder is 16 after subtracting 424 from 440.
Take the next digit (7) from the dividend and append it to 16, then repeat: 167 / 53

Let's proceed to step 5:
If we divide 167 by 53, we get 3 and a remainder of 8.
The next digit of our result is 3. 
Result so far: 383.0
The remainder is 8 after subtracting 159 from 167.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 6:
If we divide 80 by 53, we get 1 and a remainder of 27.
The next digit of our result is 1. 
Result so far: 383.1
If we take 53 away from 80, we end up with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Step 7:
When dividing 270 by 53, we get 5 with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 383.15
Deduct 265 from 270 and we're left with 5.
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 8:
The number 53 fits into 50 0 times, leaving a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 383.15
Subtracting 0 from 50 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 9:
500 divided by 53 is 9 with a remainder of 23.
The next digit of our result is 9. 
Result so far: 383.1509
Deduct 477 from 500 and we're left with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 10:
53 goes into 230 4 times with a remainder of 18.
Use 4 as the next digit of our solution. 
Result so far: 383.15094
If we take 212 away from 230, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 11:
If we divide 180 by 53, we get 3 and a remainder of 21.
Put 3 as the next digit of the answer. 
Result so far: 383.150943
Deduct 159 from 180 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 12:
53 goes into 210 3 times with a remainder of 51.
Use 3 as the next digit of our solution. 
Result so far: 383.1509433
If we subtract 159 from 210, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

The final outcome is 383.1509433, with a leftover of 5.1e-07.