602956 ÷ 20 
Our goal is to divide 602956 by 20.

Step 1:
20 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (0) from the dividend to 6 and continue with: 60 / 20

Let's proceed to step 2:
20 goes into 60 3 times with a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtract 60 from 60 to get 0.
Fetch the next digit (2) from the dividend, attach it to 0 and continue: 2 / 20

Going ahead to step 3:
The number 20 fits into 2 0 times, leaving a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 30.0
The remainder is 2 after subtracting 0 from 2.
Grab the next digit (9) from the dividend, add it to 2, then carry on: 29 / 20

Moving on to step 4:
The number 20 fits into 29 1 times, leaving a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 301.0
Subtract 20 from 29 to get 9.
Include the next digit (5) from the dividend after 9, then repeat: 95 / 20

Advancing to step 5:
The number 20 fits into 95 4 times, leaving a remainder of 15.
Use 4 as the next digit of our solution. 
Result so far: 3014.0
If we take 80 away from 95, we end up with 15.
Bring next digit (6) of the dividend behind the 15 and repeat the process: 156 / 20

Let's proceed to step 6:
20 goes into 156 7 times with a remainder of 16.
Put 7 as the next digit of the answer. 
Result so far: 30147.0
If we subtract 140 from 156, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 7:
If we divide 160 by 20, we get 8 and a remainder of 0.
The number 8 becomes the next digit in our result. 
Result so far: 30147.8
Subtracting 160 from 160 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.

On to step 8:
20 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 30147.8
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.

On 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: 30147.8
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 30147.8 with a remainder of 0.0.