We look at the division of 21449515 by 423 
We want to divide 21449515 by 423.

Advancing to step 1:
The number 423 fits into 2 0 times, leaving a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 423

Going ahead to step 2:
423 goes into 21 0 times with a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Take the next digit (4) from the dividend and append it to 21, then repeat: 214 / 423

Step 3:
214 divided by 423 is 0 with a remainder of 214.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 214 after subtracting 0 from 214.
Grab the next digit (4) from the dividend, add it to 214, then carry on: 2144 / 423

Moving on to step 4:
When dividing 2144 by 423, we get 5 with a remainder of 29.
Put 5 as the next digit of the answer. 
Result so far: 5.0
If we subtract 2115 from 2144, we get 29.
Fetch the next digit (9) from the dividend, attach it to 29 and continue: 299 / 423

Moving on to step 5:
423 can be fit into 299 0 times, resulting in a remainder of 299.
Write down 0 as next digit of the result. 
Result so far: 50.0
If we take 0 away from 299, we end up with 299.
Fetch the next digit (5) from the dividend, attach it to 299 and continue: 2995 / 423

On to step 6:
423 can be fit into 2995 7 times, resulting in a remainder of 34.
Put 7 as the next digit of the answer. 
Result so far: 507.0
If we take 2961 away from 2995, we end up with 34.
Include the next digit (1) from the dividend after 34, then repeat: 341 / 423

Moving on to step 7:
The number 423 fits into 341 0 times, leaving a remainder of 341.
Write down 0 as next digit of the result. 
Result so far: 5070.0
Subtracting 0 from 341 leaves us with 341.
Include the next digit (5) from the dividend after 341, then repeat: 3415 / 423

Advancing to step 8:
If we divide 3415 by 423, we get 8 and a remainder of 31.
The number 8 becomes the next digit in our result. 
Result so far: 50708.0
If we take 3384 away from 3415, we end up with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Going ahead to step 9:
423 can be fit into 310 0 times, resulting in a remainder of 310.
Use 0 as the next digit of our solution. 
Result so far: 50708.0
Deduct 0 from 310 and we're left with 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Moving on to step 10:
423 goes into 3100 7 times with a remainder of 139.
Use 7 as the next digit of our solution. 
Result so far: 50708.07
Deduct 2961 from 3100 and we're left with 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

Step 11:
423 goes into 1390 3 times with a remainder of 121.
Put 3 as the next digit of the answer. 
Result so far: 50708.073
Subtracting 1269 from 1390 leaves us with 121.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1210, and continue the process.

Let's proceed to step 12:
1210 divided by 423 is 2 with a remainder of 364.
Write down 2 as next digit of the result. 
Result so far: 50708.0732
Subtracting 846 from 1210 leaves us with 364.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3640, and continue the process.

On to step 13:
3640 divided by 423 is 8 with a remainder of 256.
Use 8 as the next digit of our solution. 
Result so far: 50708.07328
If we subtract 3384 from 3640, we get 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

On to step 14:
423 can be fit into 2560 6 times, resulting in a remainder of 22.
Record the quotient 6 as the next digit in the result. 
Result so far: 50708.073286
Subtract 2538 from 2560 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 15:
The number 423 fits into 220 0 times, leaving a remainder of 220.
The next digit of our result is 0. 
Result so far: 50708.073286
If we subtract 0 from 220, we 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.

Let's proceed to step 16:
If we divide 2200 by 423, we get 5 and a remainder of 85.
The next digit of our result is 5. 
Result so far: 50708.07328605
If we subtract 2115 from 2200, we get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

The quotient of the division is 50708.07328605, and the remainder is 8.5e-08.