21489270 divided by 440 
We want to figure out the number of times 21489270 can be divided by 440.

Going ahead to step 1:
2 divided by 440 is 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 440

On to step 2:
When dividing 21 by 440, we get 0 with a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Include the next digit (4) from the dividend after 21, then repeat: 214 / 440

Step 3:
When dividing 214 by 440, we get 0 with a remainder of 214.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 214 after subtracting 0 from 214.
Take the next digit (8) from the dividend and append it to 214, then repeat: 2148 / 440

On to step 4:
If we divide 2148 by 440, we get 4 and a remainder of 388.
Use 4 as the next digit of our solution. 
Result so far: 4.0
If we take 1760 away from 2148, we end up with 388.
Include the next digit (9) from the dividend after 388, then repeat: 3889 / 440

Step 5:
440 goes into 3889 8 times with a remainder of 369.
Use 8 as the next digit of our solution. 
Result so far: 48.0
If we subtract 3520 from 3889, we get 369.
Take the next digit (2) from the dividend and append it to 369, then repeat: 3692 / 440

Let's proceed to step 6:
When dividing 3692 by 440, we get 8 with a remainder of 172.
The number 8 becomes the next digit in our result. 
Result so far: 488.0
The remainder is 172 after subtracting 3520 from 3692.
Append the next digit (7) from the dividend to 172 and continue with: 1727 / 440

Let's proceed to step 7:
440 goes into 1727 3 times with a remainder of 407.
Record the quotient 3 as the next digit in the result. 
Result so far: 4883.0
The remainder is 407 after subtracting 1320 from 1727.
Fetch the next digit (0) from the dividend, attach it to 407 and continue: 4070 / 440

Let's proceed to step 8:
440 goes into 4070 9 times with a remainder of 110.
Record the quotient 9 as the next digit in the result. 
Result so far: 48839.0
Deduct 3960 from 4070 and we're left with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Step 9:
440 can be fit into 1100 2 times, resulting in a remainder of 220.
Put 2 as the next digit of the answer. 
Result so far: 48839.2
Subtract 880 from 1100 to get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Advancing to step 10:
440 can be fit into 2200 5 times, resulting in a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 48839.25
Subtracting 2200 from 2200 leaves us 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.

Advancing to step 11:
0 divided by 440 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 48839.25
Subtracting 0 from 0 leaves us 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.

Step 12:
If we divide 0 by 440, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 48839.25
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 48839.25 and a remainder of 0.0.