21862396 ÷ 489 
Our goal is to divide 21862396 by 489.

Step 1:
The number 489 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 489

Step 2:
If we divide 21 by 489, we get 0 and a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Include the next digit (8) from the dividend after 21, then repeat: 218 / 489

Moving on to step 3:
489 goes into 218 0 times with a remainder of 218.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 218 to get 218.
Take the next digit (6) from the dividend and append it to 218, then repeat: 2186 / 489

Step 4:
2186 divided by 489 is 4 with a remainder of 230.
The next digit of our result is 4. 
Result so far: 4.0
Deduct 1956 from 2186 and we're left with 230.
Include the next digit (2) from the dividend after 230, then repeat: 2302 / 489

Going ahead to step 5:
When dividing 2302 by 489, we get 4 with a remainder of 346.
Use 4 as the next digit of our solution. 
Result so far: 44.0
Subtracting 1956 from 2302 leaves us with 346.
Include the next digit (3) from the dividend after 346, then repeat: 3463 / 489

On to step 6:
When dividing 3463 by 489, we get 7 with a remainder of 40.
Use 7 as the next digit of our solution. 
Result so far: 447.0
If we subtract 3423 from 3463, we get 40.
Append the next digit (9) from the dividend to 40 and continue with: 409 / 489

Let's proceed to step 7:
When dividing 409 by 489, we get 0 with a remainder of 409.
Use 0 as the next digit of our solution. 
Result so far: 4470.0
Deduct 0 from 409 and we're left with 409.
Include the next digit (6) from the dividend after 409, then repeat: 4096 / 489

Going ahead to step 8:
4096 divided by 489 is 8 with a remainder of 184.
The next digit of our result is 8. 
Result so far: 44708.0
Deduct 3912 from 4096 and we're left with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Let's proceed to step 9:
When dividing 1840 by 489, we get 3 with a remainder of 373.
Use 3 as the next digit of our solution. 
Result so far: 44708.3
If we take 1467 away from 1840, we end up with 373.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3730, and continue the process.

On to step 10:
When dividing 3730 by 489, we get 7 with a remainder of 307.
Use 7 as the next digit of our solution. 
Result so far: 44708.37
Subtracting 3423 from 3730 leaves us with 307.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3070, and continue the process.

Advancing to step 11:
489 can be fit into 3070 6 times, resulting in a remainder of 136.
Write down 6 as next digit of the result. 
Result so far: 44708.376
The remainder is 136 after subtracting 2934 from 3070.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

On to step 12:
If we divide 1360 by 489, we get 2 and a remainder of 382.
Write down 2 as next digit of the result. 
Result so far: 44708.3762
If we take 978 away from 1360, we end up with 382.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3820, and continue the process.

On to step 13:
3820 divided by 489 is 7 with a remainder of 397.
Record the quotient 7 as the next digit in the result. 
Result so far: 44708.37627
If we subtract 3423 from 3820, we get 397.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3970, and continue the process.

Moving on to step 14:
489 goes into 3970 8 times with a remainder of 58.
Use 8 as the next digit of our solution. 
Result so far: 44708.376278
Deduct 3912 from 3970 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Step 15:
489 goes into 580 1 times with a remainder of 91.
Write down 1 as next digit of the result. 
Result so far: 44708.3762781
If we subtract 489 from 580, we get 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Let's proceed to step 16:
910 divided by 489 is 1 with a remainder of 421.
Record the quotient 1 as the next digit in the result. 
Result so far: 44708.37627811
Subtract 489 from 910 to get 421.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4210, and continue the process.

The final outcome is 44708.37627811, with a leftover of 4.21e-07.