We look at the division of 642764 by 20 
We want to figure out the number of times 642764 can be divided by 20.

On to step 1:
20 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the 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

Advancing to step 2:
20 can be fit into 64 3 times, resulting in a remainder of 4.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtracting 60 from 64 leaves us with 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 20

Step 3:
42 divided by 20 is 2 with a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 32.0
Deduct 40 from 42 and we're left with 2.
Append the next digit (7) from the dividend to 2 and continue with: 27 / 20

On to step 4:
The number 20 fits into 27 1 times, leaving a remainder of 7.
Use 1 as the next digit of our solution. 
Result so far: 321.0
Deduct 20 from 27 and we're left with 7.
Fetch the next digit (6) from the dividend, attach it to 7 and continue: 76 / 20

Let's proceed to step 5:
20 goes into 76 3 times with a remainder of 16.
Use 3 as the next digit of our solution. 
Result so far: 3213.0
Subtracting 60 from 76 leaves us with 16.
Grab the next digit (4) from the dividend, add it to 16, then carry on: 164 / 20

Step 6:
The number 20 fits into 164 8 times, leaving a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 32138.0
The remainder is 4 after subtracting 160 from 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 7:
20 can be fit into 40 2 times, resulting in a remainder of 0.
The next digit of our result is 2. 
Result so far: 32138.2
Subtract 40 from 40 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.

On to step 8:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 32138.2
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.

Advancing to step 9:
If we divide 0 by 20, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 32138.2
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.

After the division, we end up with 32138.2 and a remainder of 0.0.