We're dividing 21024870 by 240 
Let's see how many times 240 fits into 21024870.

Advancing to step 1:
If we divide 2 by 240, we get 0 and a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 240

Let's proceed to step 2:
The number 240 fits into 21 0 times, leaving a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Fetch the next digit (0) from the dividend, attach it to 21 and continue: 210 / 240

Advancing to step 3:
The number 240 fits into 210 0 times, leaving a remainder of 210.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 210 after subtracting 0 from 210.
Fetch the next digit (2) from the dividend, attach it to 210 and continue: 2102 / 240

Step 4:
When dividing 2102 by 240, we get 8 with a remainder of 182.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we subtract 1920 from 2102, we get 182.
Append the next digit (4) from the dividend to 182 and continue with: 1824 / 240

Moving on to step 5:
The number 240 fits into 1824 7 times, leaving a remainder of 144.
Put 7 as the next digit of the answer. 
Result so far: 87.0
Deduct 1680 from 1824 and we're left with 144.
Bring next digit (8) of the dividend behind the 144 and repeat the process: 1448 / 240

Let's proceed to step 6:
240 can be fit into 1448 6 times, resulting in a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 876.0
Subtracting 1440 from 1448 leaves us with 8.
Take the next digit (7) from the dividend and append it to 8, then repeat: 87 / 240

Moving on to step 7:
When dividing 87 by 240, we get 0 with a remainder of 87.
Put 0 as the next digit of the answer. 
Result so far: 8760.0
The remainder is 87 after subtracting 0 from 87.
Bring next digit (0) of the dividend behind the 87 and repeat the process: 870 / 240

Advancing to step 8:
The number 240 fits into 870 3 times, leaving a remainder of 150.
Put 3 as the next digit of the answer. 
Result so far: 87603.0
If we take 720 away from 870, we end up with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

On to step 9:
The number 240 fits into 1500 6 times, leaving a remainder of 60.
Use 6 as the next digit of our solution. 
Result so far: 87603.6
Deduct 1440 from 1500 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 10:
240 goes into 600 2 times with a remainder of 120.
Record the quotient 2 as the next digit in the result. 
Result so far: 87603.62
Subtracting 480 from 600 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Moving on to step 11:
240 can be fit into 1200 5 times, resulting in a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 87603.625
If we take 1200 away from 1200, we end up 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:
240 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 87603.625
Subtract 0 from 0 to 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.

Step 13:
240 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 87603.625
Subtract 0 from 0 to 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.

The final result is 87603.625 with a remainder of 0.0.