We're dividing 21534813 by 887 
Our goal is to divide 21534813 by 887.

Going ahead to step 1:
887 goes into 2 0 times with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 887

Advancing to step 2:
When dividing 21 by 887, we get 0 with a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Bring next digit (5) of the dividend behind the 21 and repeat the process: 215 / 887

Step 3:
887 goes into 215 0 times with a remainder of 215.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 215, we get 215.
Append the next digit (3) from the dividend to 215 and continue with: 2153 / 887

Moving on to step 4:
887 goes into 2153 2 times with a remainder of 379.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we take 1774 away from 2153, we end up with 379.
Take the next digit (4) from the dividend and append it to 379, then repeat: 3794 / 887

Going ahead to step 5:
3794 divided by 887 is 4 with a remainder of 246.
Put 4 as the next digit of the answer. 
Result so far: 24.0
If we take 3548 away from 3794, we end up with 246.
Fetch the next digit (8) from the dividend, attach it to 246 and continue: 2468 / 887

Moving on to step 6:
When dividing 2468 by 887, we get 2 with a remainder of 694.
Write down 2 as next digit of the result. 
Result so far: 242.0
The remainder is 694 after subtracting 1774 from 2468.
Append the next digit (1) from the dividend to 694 and continue with: 6941 / 887

Let's proceed to step 7:
887 can be fit into 6941 7 times, resulting in a remainder of 732.
The number 7 becomes the next digit in our result. 
Result so far: 2427.0
If we subtract 6209 from 6941, we get 732.
Fetch the next digit (3) from the dividend, attach it to 732 and continue: 7323 / 887

Moving on to step 8:
If we divide 7323 by 887, we get 8 and a remainder of 227.
Record the quotient 8 as the next digit in the result. 
Result so far: 24278.0
If we take 7096 away from 7323, we end up with 227.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2270, and continue the process.

Moving on to step 9:
When dividing 2270 by 887, we get 2 with a remainder of 496.
Record the quotient 2 as the next digit in the result. 
Result so far: 24278.2
Deduct 1774 from 2270 and we're left with 496.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4960, and continue the process.

Step 10:
If we divide 4960 by 887, we get 5 and a remainder of 525.
Write down 5 as next digit of the result. 
Result so far: 24278.25
If we subtract 4435 from 4960, we get 525.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5250, and continue the process.

Moving on to step 11:
887 can be fit into 5250 5 times, resulting in a remainder of 815.
Use 5 as the next digit of our solution. 
Result so far: 24278.255
The remainder is 815 after subtracting 4435 from 5250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8150, and continue the process.

The final outcome is 24278.255, with a leftover of 0.0815.