648859 ÷ 20 
We want to figure out the number of times 648859 can be divided by 20.

Step 1:
When dividing 6 by 20, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 20

Let's proceed to step 2:
20 goes into 64 3 times with a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtracting 60 from 64 leaves us with 4.
Fetch the next digit (8) from the dividend, attach it to 4 and continue: 48 / 20

Moving on to step 3:
48 divided by 20 is 2 with a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 32.0
Deduct 40 from 48 and we're left with 8.
Take the next digit (8) from the dividend and append it to 8, then repeat: 88 / 20

Let's proceed to step 4:
If we divide 88 by 20, we get 4 and a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 324.0
Subtracting 80 from 88 leaves us with 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 20

Going ahead to step 5:
20 can be fit into 85 4 times, resulting in a remainder of 5.
The next digit of our result is 4. 
Result so far: 3244.0
If we subtract 80 from 85, we get 5.
Include the next digit (9) from the dividend after 5, then repeat: 59 / 20

Going ahead to step 6:
If we divide 59 by 20, we get 2 and a remainder of 19.
The number 2 becomes the next digit in our result. 
Result so far: 32442.0
Subtract 40 from 59 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 7:
If we divide 190 by 20, we get 9 and a remainder of 10.
Write down 9 as next digit of the result. 
Result so far: 32442.9
Subtracting 180 from 190 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
20 goes into 100 5 times with a remainder of 0.
The next digit of our result is 5. 
Result so far: 32442.95
Deduct 100 from 100 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.

Going ahead to step 9:
0 divided by 20 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 32442.95
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.

Let's proceed 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: 32442.95
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.

The final outcome is 32442.95, with a leftover of 0.0.