642737 ÷ 20 
Let's see how many times 20 fits into 642737.

Let's proceed to step 1:
The number 20 fits into 6 0 times, leaving a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 20

Let's proceed to step 2:
20 goes into 64 3 times with a remainder of 4.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we subtract 60 from 64, we get 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 20

Advancing to step 3:
20 goes into 42 2 times with a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 32.0
If we take 40 away from 42, we end up with 2.
Include the next digit (7) from the dividend after 2, then repeat: 27 / 20

Let's proceed to step 4:
27 divided by 20 is 1 with a remainder of 7.
The next digit of our result is 1. 
Result so far: 321.0
If we subtract 20 from 27, we get 7.
Fetch the next digit (3) from the dividend, attach it to 7 and continue: 73 / 20

Moving on to step 5:
20 goes into 73 3 times with a remainder of 13.
The next digit of our result is 3. 
Result so far: 3213.0
The remainder is 13 after subtracting 60 from 73.
Fetch the next digit (7) from the dividend, attach it to 13 and continue: 137 / 20

Step 6:
20 can be fit into 137 6 times, resulting in a remainder of 17.
The next digit of our result is 6. 
Result so far: 32136.0
Subtract 120 from 137 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 7:
170 divided by 20 is 8 with a remainder of 10.
Use 8 as the next digit of our solution. 
Result so far: 32136.8
The remainder is 10 after subtracting 160 from 170.
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 8:
20 can be fit into 100 5 times, resulting in a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 32136.85
The remainder is 0 after subtracting 100 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 9:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 32136.85
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.

Let's proceed to step 10:
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: 32136.85
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.

After the division, we end up with 32136.85 and a remainder of 0.0.