21150489 divided by 410 
Our goal is to divide 21150489 by 410.

Going ahead to step 1:
410 can be fit into 2 0 times, resulting in a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 410

Step 2:
410 goes into 21 0 times with a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Take the next digit (1) from the dividend and append it to 21, then repeat: 211 / 410

Advancing to step 3:
211 divided by 410 is 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.
Append the next digit (5) from the dividend to 211 and continue with: 2115 / 410

Step 4:
If we divide 2115 by 410, we get 5 and a remainder of 65.
Use 5 as the next digit of our solution. 
Result so far: 5.0
If we subtract 2050 from 2115, we get 65.
Append the next digit (0) from the dividend to 65 and continue with: 650 / 410

Moving on to step 5:
If we divide 650 by 410, we get 1 and a remainder of 240.
Record the quotient 1 as the next digit in the result. 
Result so far: 51.0
Deduct 410 from 650 and we're left with 240.
Include the next digit (4) from the dividend after 240, then repeat: 2404 / 410

Going ahead to step 6:
410 goes into 2404 5 times with a remainder of 354.
The number 5 becomes the next digit in our result. 
Result so far: 515.0
If we take 2050 away from 2404, we end up with 354.
Fetch the next digit (8) from the dividend, attach it to 354 and continue: 3548 / 410

On to step 7:
If we divide 3548 by 410, we get 8 and a remainder of 268.
Put 8 as the next digit of the answer. 
Result so far: 5158.0
Deduct 3280 from 3548 and we're left with 268.
Fetch the next digit (9) from the dividend, attach it to 268 and continue: 2689 / 410

On to step 8:
If we divide 2689 by 410, we get 6 and a remainder of 229.
The number 6 becomes the next digit in our result. 
Result so far: 51586.0
The remainder is 229 after subtracting 2460 from 2689.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2290, and continue the process.

Moving on to step 9:
When dividing 2290 by 410, we get 5 with a remainder of 240.
Use 5 as the next digit of our solution. 
Result so far: 51586.5
Subtract 2050 from 2290 to get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Moving on to step 10:
2400 divided by 410 is 5 with a remainder of 350.
The next digit of our result is 5. 
Result so far: 51586.55
Deduct 2050 from 2400 and we're left with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

In conclusion, the division gives 51586.55 with a balance of 0.35.