We're dividing 21463248 by 809 
We want to divide 21463248 by 809.

Step 1:
If we divide 2 by 809, we get 0 and a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 809

Let's proceed to step 2:
When dividing 21 by 809, 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.
Append the next digit (4) from the dividend to 21 and continue with: 214 / 809

On to step 3:
809 goes into 214 0 times with a remainder of 214.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 214 and we're left with 214.
Grab the next digit (6) from the dividend, add it to 214, then carry on: 2146 / 809

Going ahead to step 4:
If we divide 2146 by 809, we get 2 and a remainder of 528.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 1618 from 2146 and we're left with 528.
Include the next digit (3) from the dividend after 528, then repeat: 5283 / 809

Going ahead to step 5:
5283 divided by 809 is 6 with a remainder of 429.
The number 6 becomes the next digit in our result. 
Result so far: 26.0
If we subtract 4854 from 5283, we get 429.
Grab the next digit (2) from the dividend, add it to 429, then carry on: 4292 / 809

On to step 6:
The number 809 fits into 4292 5 times, leaving a remainder of 247.
Record the quotient 5 as the next digit in the result. 
Result so far: 265.0
Subtracting 4045 from 4292 leaves us with 247.
Take the next digit (4) from the dividend and append it to 247, then repeat: 2474 / 809

On to step 7:
809 goes into 2474 3 times with a remainder of 47.
Use 3 as the next digit of our solution. 
Result so far: 2653.0
Deduct 2427 from 2474 and we're left with 47.
Include the next digit (8) from the dividend after 47, then repeat: 478 / 809

Step 8:
809 goes into 478 0 times with a remainder of 478.
Put 0 as the next digit of the answer. 
Result so far: 26530.0
If we take 0 away from 478, we end up with 478.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4780, and continue the process.

Step 9:
4780 divided by 809 is 5 with a remainder of 735.
The number 5 becomes the next digit in our result. 
Result so far: 26530.5
If we subtract 4045 from 4780, we get 735.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7350, and continue the process.

On to step 10:
809 can be fit into 7350 9 times, resulting in a remainder of 69.
Use 9 as the next digit of our solution. 
Result so far: 26530.59
Deduct 7281 from 7350 and we're left with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Step 11:
809 goes into 690 0 times with a remainder of 690.
Use 0 as the next digit of our solution. 
Result so far: 26530.59
If we take 0 away from 690, we end up with 690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6900, and continue the process.

On to step 12:
809 can be fit into 6900 8 times, resulting in a remainder of 428.
Write down 8 as next digit of the result. 
Result so far: 26530.5908
If we subtract 6472 from 6900, we get 428.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4280, and continue the process.

Step 13:
4280 divided by 809 is 5 with a remainder of 235.
Write down 5 as next digit of the result. 
Result so far: 26530.59085
Deduct 4045 from 4280 and we're left with 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Step 14:
If we divide 2350 by 809, we get 2 and a remainder of 732.
Use 2 as the next digit of our solution. 
Result so far: 26530.590852
The remainder is 732 after subtracting 1618 from 2350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7320, and continue the process.

Advancing to step 15:
If we divide 7320 by 809, we get 9 and a remainder of 39.
The next digit of our result is 9. 
Result so far: 26530.5908529
If we subtract 7281 from 7320, we get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Let's proceed to step 16:
When dividing 390 by 809, we get 0 with a remainder of 390.
Record the quotient 0 as the next digit in the result. 
Result so far: 26530.5908529
Subtract 0 from 390 to get 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

The quotient of the division is 26530.5908529, and the remainder is 3.9e-07.