42715 divided by 20 
We're looking to find how many times 20 goes into 42715.

Step 1:
4 divided by 20 is 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 20

Let's proceed to step 2:
The number 20 fits into 42 2 times, leaving a remainder of 2.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtracting 40 from 42 leaves us with 2.
Include the next digit (7) from the dividend after 2, then repeat: 27 / 20

Step 3:
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: 21.0
If we subtract 20 from 27, we get 7.
Include the next digit (1) from the dividend after 7, then repeat: 71 / 20

Advancing to step 4:
71 divided by 20 is 3 with a remainder of 11.
Record the quotient 3 as the next digit in the result. 
Result so far: 213.0
The remainder is 11 after subtracting 60 from 71.
Fetch the next digit (5) from the dividend, attach it to 11 and continue: 115 / 20

Moving on to step 5:
20 goes into 115 5 times with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 2135.0
If we subtract 100 from 115, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 6:
150 divided by 20 is 7 with a remainder of 10.
Record the quotient 7 as the next digit in the result. 
Result so far: 2135.7
Subtract 140 from 150 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 7:
The number 20 fits into 100 5 times, leaving a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 2135.75
Subtracting 100 from 100 leaves us 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.

Moving on to step 8:
0 divided by 20 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 2135.75
Subtract 0 from 0 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.

Step 9:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 2135.75
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 result is 2135.75 with a remainder of 0.0.