21198504 divided by 455 
Let's see how many times 455 fits into 21198504.

Going ahead to step 1:
455 can be fit into 2 0 times, resulting in a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 455

Let's proceed to step 2:
When dividing 21 by 455, we get 0 with a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Take the next digit (1) from the dividend and append it to 21, then repeat: 211 / 455

Advancing to step 3:
When dividing 211 by 455, we get 0 with a remainder of 211.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 211, we get 211.
Take the next digit (9) from the dividend and append it to 211, then repeat: 2119 / 455

Step 4:
2119 divided by 455 is 4 with a remainder of 299.
Use 4 as the next digit of our solution. 
Result so far: 4.0
The remainder is 299 after subtracting 1820 from 2119.
Include the next digit (8) from the dividend after 299, then repeat: 2998 / 455

Going ahead to step 5:
455 goes into 2998 6 times with a remainder of 268.
Write down 6 as next digit of the result. 
Result so far: 46.0
If we take 2730 away from 2998, we end up with 268.
Append the next digit (5) from the dividend to 268 and continue with: 2685 / 455

Step 6:
455 goes into 2685 5 times with a remainder of 410.
The next digit of our result is 5. 
Result so far: 465.0
If we take 2275 away from 2685, we end up with 410.
Take the next digit (0) from the dividend and append it to 410, then repeat: 4100 / 455

Advancing to step 7:
When dividing 4100 by 455, we get 9 with a remainder of 5.
Write down 9 as next digit of the result. 
Result so far: 4659.0
Subtracting 4095 from 4100 leaves us with 5.
Take the next digit (4) from the dividend and append it to 5, then repeat: 54 / 455

Going ahead to step 8:
The number 455 fits into 54 0 times, leaving a remainder of 54.
Put 0 as the next digit of the answer. 
Result so far: 46590.0
Subtracting 0 from 54 leaves us with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Going ahead to step 9:
540 divided by 455 is 1 with a remainder of 85.
Put 1 as the next digit of the answer. 
Result so far: 46590.1
Subtracting 455 from 540 leaves us with 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Step 10:
If we divide 850 by 455, we get 1 and a remainder of 395.
Write down 1 as next digit of the result. 
Result so far: 46590.11
Deduct 455 from 850 and we're left with 395.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3950, and continue the process.

Our division results in 46590.11 with a remaining 0.395.