482965 ÷ 21 
We're looking to find how many times 21 goes into 482965.

Step 1:
21 goes into 4 0 times with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Append the next digit (8) from the dividend to 4 and continue with: 48 / 21

Going ahead to step 2:
21 goes into 48 2 times with a remainder of 6.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 42 from 48, we get 6.
Fetch the next digit (2) from the dividend, attach it to 6 and continue: 62 / 21

Step 3:
62 divided by 21 is 2 with a remainder of 20.
Put 2 as the next digit of the answer. 
Result so far: 22.0
The remainder is 20 after subtracting 42 from 62.
Append the next digit (9) from the dividend to 20 and continue with: 209 / 21

Step 4:
21 can be fit into 209 9 times, resulting in a remainder of 20.
Record the quotient 9 as the next digit in the result. 
Result so far: 229.0
Deduct 189 from 209 and we're left with 20.
Grab the next digit (6) from the dividend, add it to 20, then carry on: 206 / 21

Moving on to step 5:
When dividing 206 by 21, we get 9 with a remainder of 17.
Put 9 as the next digit of the answer. 
Result so far: 2299.0
Subtract 189 from 206 to get 17.
Grab the next digit (5) from the dividend, add it to 17, then carry on: 175 / 21

Step 6:
The number 21 fits into 175 8 times, leaving a remainder of 7.
The number 8 becomes the next digit in our result. 
Result so far: 22998.0
Subtracting 168 from 175 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 7:
If we divide 70 by 21, we get 3 and a remainder of 7.
Record the quotient 3 as the next digit in the result. 
Result so far: 22998.3
Subtracting 63 from 70 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 8:
When dividing 70 by 21, we get 3 with a remainder of 7.
Use 3 as the next digit of our solution. 
Result so far: 22998.33
The remainder is 7 after subtracting 63 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

The final result is 22998.33 with a remainder of 0.007.