We're dividing 21259839 by 449 
Let's see how many times 449 fits into 21259839.

Moving on to step 1:
If we divide 2 by 449, we get 0 and a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 449

Advancing to step 2:
449 can be fit into 21 0 times, resulting in a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Take the next digit (2) from the dividend and append it to 21, then repeat: 212 / 449

Let's proceed to step 3:
212 divided by 449 is 0 with a remainder of 212.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 212 and we're left with 212.
Take the next digit (5) from the dividend and append it to 212, then repeat: 2125 / 449

Advancing to step 4:
The number 449 fits into 2125 4 times, leaving a remainder of 329.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
The remainder is 329 after subtracting 1796 from 2125.
Include the next digit (9) from the dividend after 329, then repeat: 3299 / 449

Going ahead to step 5:
The number 449 fits into 3299 7 times, leaving a remainder of 156.
Record the quotient 7 as the next digit in the result. 
Result so far: 47.0
Deduct 3143 from 3299 and we're left with 156.
Fetch the next digit (8) from the dividend, attach it to 156 and continue: 1568 / 449

Step 6:
449 can be fit into 1568 3 times, resulting in a remainder of 221.
The next digit of our result is 3. 
Result so far: 473.0
Subtracting 1347 from 1568 leaves us with 221.
Append the next digit (3) from the dividend to 221 and continue with: 2213 / 449

Advancing to step 7:
The number 449 fits into 2213 4 times, leaving a remainder of 417.
Put 4 as the next digit of the answer. 
Result so far: 4734.0
If we subtract 1796 from 2213, we get 417.
Include the next digit (9) from the dividend after 417, then repeat: 4179 / 449

Advancing to step 8:
449 can be fit into 4179 9 times, resulting in a remainder of 138.
The next digit of our result is 9. 
Result so far: 47349.0
Deduct 4041 from 4179 and we're left with 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

On to step 9:
449 can be fit into 1380 3 times, resulting in a remainder of 33.
The next digit of our result is 3. 
Result so far: 47349.3
If we take 1347 away from 1380, we end up with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

On to step 10:
The number 449 fits into 330 0 times, leaving a remainder of 330.
Record the quotient 0 as the next digit in the result. 
Result so far: 47349.3
If we take 0 away from 330, we end up with 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Going ahead to step 11:
The number 449 fits into 3300 7 times, leaving a remainder of 157.
The next digit of our result is 7. 
Result so far: 47349.307
Deduct 3143 from 3300 and we're left with 157.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

Step 12:
If we divide 1570 by 449, we get 3 and a remainder of 223.
Put 3 as the next digit of the answer. 
Result so far: 47349.3073
Deduct 1347 from 1570 and we're left with 223.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2230, and continue the process.

Moving on to step 13:
When dividing 2230 by 449, we get 4 with a remainder of 434.
The number 4 becomes the next digit in our result. 
Result so far: 47349.30734
The remainder is 434 after subtracting 1796 from 2230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4340, and continue the process.

Step 14:
The number 449 fits into 4340 9 times, leaving a remainder of 299.
Use 9 as the next digit of our solution. 
Result so far: 47349.307349
Deduct 4041 from 4340 and we're left with 299.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2990, and continue the process.

On to step 15:
When dividing 2990 by 449, we get 6 with a remainder of 296.
Record the quotient 6 as the next digit in the result. 
Result so far: 47349.3073496
The remainder is 296 after subtracting 2694 from 2990.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Step 16:
449 goes into 2960 6 times with a remainder of 266.
Put 6 as the next digit of the answer. 
Result so far: 47349.30734966
Subtract 2694 from 2960 to get 266.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2660, and continue the process.

After the division, we end up with 47349.30734966 and a remainder of 2.66e-07.