Let's divide 20564875 by 642
We're looking to find how many times 642 goes into 20564875.

Advancing to step 1:
2 divided by 642 is 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 642

Going ahead to step 2:
642 goes into 20 0 times with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 20, we get 20.
Bring next digit (5) of the dividend behind the 20 and repeat the process: 205 / 642

Moving on to step 3:
205 divided by 642 is 0 with a remainder of 205.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 205, we get 205.
Fetch the next digit (6) from the dividend, attach it to 205 and continue: 2056 / 642

Step 4:
2056 divided by 642 is 3 with a remainder of 130.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we subtract 1926 from 2056, we get 130.
Append the next digit (4) from the dividend to 130 and continue with: 1304 / 642

Let's proceed to step 5:
1304 divided by 642 is 2 with a remainder of 20.
Use 2 as the next digit of our solution. 
Result so far: 32.0
The remainder is 20 after subtracting 1284 from 1304.
Take the next digit (8) from the dividend and append it to 20, then repeat: 208 / 642

Advancing to step 6:
642 goes into 208 0 times with a remainder of 208.
Record the quotient 0 as the next digit in the result. 
Result so far: 320.0
Deduct 0 from 208 and we're left with 208.
Fetch the next digit (7) from the dividend, attach it to 208 and continue: 2087 / 642

Going ahead to step 7:
642 can be fit into 2087 3 times, resulting in a remainder of 161.
Put 3 as the next digit of the answer. 
Result so far: 3203.0
If we subtract 1926 from 2087, we get 161.
Append the next digit (5) from the dividend to 161 and continue with: 1615 / 642

Advancing to step 8:
If we divide 1615 by 642, we get 2 and a remainder of 331.
Put 2 as the next digit of the answer. 
Result so far: 32032.0
The remainder is 331 after subtracting 1284 from 1615.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3310, and continue the process.

Advancing to step 9:
When dividing 3310 by 642, we get 5 with a remainder of 100.
Write down 5 as next digit of the result. 
Result so far: 32032.5
Deduct 3210 from 3310 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Let's proceed to step 10:
The number 642 fits into 1000 1 times, leaving a remainder of 358.
Use 1 as the next digit of our solution. 
Result so far: 32032.51
Subtracting 642 from 1000 leaves us with 358.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3580, and continue the process.

On to step 11:
642 can be fit into 3580 5 times, resulting in a remainder of 370.
Put 5 as the next digit of the answer. 
Result so far: 32032.515
If we subtract 3210 from 3580, we get 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Step 12:
If we divide 3700 by 642, we get 5 and a remainder of 490.
Put 5 as the next digit of the answer. 
Result so far: 32032.5155
If we take 3210 away from 3700, we end up with 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

The final outcome is 32032.5155, with a leftover of 0.0049.