We're dividing 548506 by 21 
Our goal is to divide 548506 by 21.

On to step 1:
5 divided by 21 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Include the next digit (4) from the dividend after 5, then repeat: 54 / 21

Advancing to step 2:
When dividing 54 by 21, we get 2 with a remainder of 12.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 42 from 54 to get 12.
Append the next digit (8) from the dividend to 12 and continue with: 128 / 21

Moving on to step 3:
When dividing 128 by 21, we get 6 with a remainder of 2.
The number 6 becomes the next digit in our result. 
Result so far: 26.0
Subtract 126 from 128 to get 2.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 21

Going ahead to step 4:
21 can be fit into 25 1 times, resulting in a remainder of 4.
The number 1 becomes the next digit in our result. 
Result so far: 261.0
If we take 21 away from 25, we end up with 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 21

Moving on to step 5:
21 goes into 40 1 times with a remainder of 19.
The next digit of our result is 1. 
Result so far: 2611.0
If we take 21 away from 40, we end up with 19.
Take the next digit (6) from the dividend and append it to 19, then repeat: 196 / 21

Advancing to step 6:
196 divided by 21 is 9 with a remainder of 7.
Use 9 as the next digit of our solution. 
Result so far: 26119.0
If we take 189 away from 196, we end up 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 7:
When dividing 70 by 21, we get 3 with a remainder of 7.
The next digit of our result is 3. 
Result so far: 26119.3
Deduct 63 from 70 and we're left 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.

Let's proceed to step 8:
When dividing 70 by 21, we get 3 with a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 26119.33
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 26119.33 with a remainder of 0.007.