545506 divided by 21 
We want to divide 545506 by 21.

On to step 1:
21 goes into 5 0 times with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Fetch the next digit (4) from the dividend, attach it to 5 and continue: 54 / 21

Step 2:
21 can be fit into 54 2 times, resulting in a remainder of 12.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtracting 42 from 54 leaves us with 12.
Grab the next digit (5) from the dividend, add it to 12, then carry on: 125 / 21

Let's proceed to step 3:
125 divided by 21 is 5 with a remainder of 20.
Write down 5 as next digit of the result. 
Result so far: 25.0
Subtract 105 from 125 to get 20.
Take the next digit (5) from the dividend and append it to 20, then repeat: 205 / 21

Step 4:
205 divided by 21 is 9 with a remainder of 16.
The number 9 becomes the next digit in our result. 
Result so far: 259.0
Subtract 189 from 205 to get 16.
Grab the next digit (0) from the dividend, add it to 16, then carry on: 160 / 21

Step 5:
160 divided by 21 is 7 with a remainder of 13.
Put 7 as the next digit of the answer. 
Result so far: 2597.0
The remainder is 13 after subtracting 147 from 160.
Bring next digit (6) of the dividend behind the 13 and repeat the process: 136 / 21

Advancing to step 6:
If we divide 136 by 21, we get 6 and a remainder of 10.
The number 6 becomes the next digit in our result. 
Result so far: 25976.0
The remainder is 10 after subtracting 126 from 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 7:
The number 21 fits into 100 4 times, leaving a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 25976.4
The remainder is 16 after subtracting 84 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 8:
21 goes into 160 7 times with a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 25976.47
Subtracting 147 from 160 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 9:
21 goes into 130 6 times with a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 25976.476
Subtract 126 from 130 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 10:
When dividing 40 by 21, we get 1 with a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 25976.4761
Deduct 21 from 40 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 11:
When dividing 190 by 21, we get 9 with a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 25976.47619
Subtracting 189 from 190 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 12:
If we divide 10 by 21, we get 0 and a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 25976.47619
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 13:
When dividing 100 by 21, we get 4 with a remainder of 16.
The next digit of our result is 4. 
Result so far: 25976.4761904
The remainder is 16 after subtracting 84 from 100.
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 14:
160 divided by 21 is 7 with a remainder of 13.
Write down 7 as next digit of the result. 
Result so far: 25976.47619047
Subtracting 147 from 160 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Our division results in 25976.47619047 with a remaining 1.3e-08.