Let's divide 53648 by 21
Let's see how many times 21 fits into 53648.

Step 1:
5 divided by 21 is 0 with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 21

Let's proceed to step 2:
When dividing 53 by 21, we get 2 with a remainder of 11.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtracting 42 from 53 leaves us with 11.
Grab the next digit (6) from the dividend, add it to 11, then carry on: 116 / 21

Step 3:
When dividing 116 by 21, we get 5 with a remainder of 11.
Record the quotient 5 as the next digit in the result. 
Result so far: 25.0
If we take 105 away from 116, we end up with 11.
Take the next digit (4) from the dividend and append it to 11, then repeat: 114 / 21

On to step 4:
If we divide 114 by 21, we get 5 and a remainder of 9.
Use 5 as the next digit of our solution. 
Result so far: 255.0
Subtracting 105 from 114 leaves us with 9.
Fetch the next digit (8) from the dividend, attach it to 9 and continue: 98 / 21

Let's proceed to step 5:
21 goes into 98 4 times with a remainder of 14.
Put 4 as the next digit of the answer. 
Result so far: 2554.0
Subtracting 84 from 98 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 6:
If we divide 140 by 21, we get 6 and a remainder of 14.
Record the quotient 6 as the next digit in the result. 
Result so far: 2554.6
If we subtract 126 from 140, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 7:
When dividing 140 by 21, we get 6 with a remainder of 14.
Use 6 as the next digit of our solution. 
Result so far: 2554.66
The remainder is 14 after subtracting 126 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Our division results in 2554.66 with a remaining 0.014.