Let's divide 55403 by 20
We want to divide 55403 by 20.

On to step 1:
If we divide 5 by 20, we get 0 and a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Take the next digit (5) from the dividend and append it to 5, then repeat: 55 / 20

Moving on to step 2:
When dividing 55 by 20, we get 2 with a remainder of 15.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtract 40 from 55 to get 15.
Take the next digit (4) from the dividend and append it to 15, then repeat: 154 / 20

Advancing to step 3:
20 can be fit into 154 7 times, resulting in a remainder of 14.
The number 7 becomes the next digit in our result. 
Result so far: 27.0
Deduct 140 from 154 and we're left with 14.
Fetch the next digit (0) from the dividend, attach it to 14 and continue: 140 / 20

On to step 4:
20 can be fit into 140 7 times, resulting in a remainder of 0.
Write down 7 as next digit of the result. 
Result so far: 277.0
Subtracting 140 from 140 leaves us with 0.
Fetch the next digit (3) from the dividend, attach it to 0 and continue: 3 / 20

Advancing to step 5:
20 goes into 3 0 times with a remainder of 3.
The next digit of our result is 0. 
Result so far: 2770.0
Deduct 0 from 3 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 6:
The number 20 fits into 30 1 times, leaving a remainder of 10.
Write down 1 as next digit of the result. 
Result so far: 2770.1
Deduct 20 from 30 and we're left with 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 7:
20 can be fit into 100 5 times, resulting in a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 2770.15
Deduct 100 from 100 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.

Going ahead to step 8:
If we divide 0 by 20, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 2770.15
If we take 0 away from 0, we end up 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.

Moving on to step 9:
0 divided by 20 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 2770.15
If we take 0 away from 0, we end up 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.

In conclusion, the division gives 2770.15 with a balance of 0.0.