21186519 divided by 384 
We want to divide 21186519 by 384.

Let's proceed to step 1:
When dividing 2 by 384, we get 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 384

On to step 2:
If we divide 21 by 384, we get 0 and a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Grab the next digit (1) from the dividend, add it to 21, then carry on: 211 / 384

On to step 3:
If we divide 211 by 384, we get 0 and a remainder of 211.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 211 and we're left with 211.
Take the next digit (8) from the dividend and append it to 211, then repeat: 2118 / 384

Step 4:
When dividing 2118 by 384, we get 5 with a remainder of 198.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtracting 1920 from 2118 leaves us with 198.
Include the next digit (6) from the dividend after 198, then repeat: 1986 / 384

Moving on to step 5:
384 can be fit into 1986 5 times, resulting in a remainder of 66.
The number 5 becomes the next digit in our result. 
Result so far: 55.0
Subtracting 1920 from 1986 leaves us with 66.
Fetch the next digit (5) from the dividend, attach it to 66 and continue: 665 / 384

Let's proceed to step 6:
If we divide 665 by 384, we get 1 and a remainder of 281.
The next digit of our result is 1. 
Result so far: 551.0
If we subtract 384 from 665, we get 281.
Bring next digit (1) of the dividend behind the 281 and repeat the process: 2811 / 384

Step 7:
If we divide 2811 by 384, we get 7 and a remainder of 123.
Record the quotient 7 as the next digit in the result. 
Result so far: 5517.0
If we subtract 2688 from 2811, we get 123.
Bring next digit (9) of the dividend behind the 123 and repeat the process: 1239 / 384

On to step 8:
If we divide 1239 by 384, we get 3 and a remainder of 87.
Put 3 as the next digit of the answer. 
Result so far: 55173.0
The remainder is 87 after subtracting 1152 from 1239.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Going ahead to step 9:
384 can be fit into 870 2 times, resulting in a remainder of 102.
Put 2 as the next digit of the answer. 
Result so far: 55173.2
Subtracting 768 from 870 leaves us with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Step 10:
If we divide 1020 by 384, we get 2 and a remainder of 252.
Use 2 as the next digit of our solution. 
Result so far: 55173.22
If we subtract 768 from 1020, we get 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

After the division, we end up with 55173.22 and a remainder of 0.252.