821387 ÷ 63 
We want to divide 821387 by 63.

Moving on to step 1:
When dividing 8 by 63, we get 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Bring next digit (2) of the dividend behind the 8 and repeat the process: 82 / 63

On to step 2:
63 can be fit into 82 1 times, resulting in a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 19 after subtracting 63 from 82.
Include the next digit (1) from the dividend after 19, then repeat: 191 / 63

Step 3:
63 goes into 191 3 times with a remainder of 2.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
The remainder is 2 after subtracting 189 from 191.
Take the next digit (3) from the dividend and append it to 2, then repeat: 23 / 63

Step 4:
23 divided by 63 is 0 with a remainder of 23.
The number 0 becomes the next digit in our result. 
Result so far: 130.0
Subtract 0 from 23 to get 23.
Append the next digit (8) from the dividend to 23 and continue with: 238 / 63

Moving on to step 5:
238 divided by 63 is 3 with a remainder of 49.
Put 3 as the next digit of the answer. 
Result so far: 1303.0
Deduct 189 from 238 and we're left with 49.
Take the next digit (7) from the dividend and append it to 49, then repeat: 497 / 63

Step 6:
63 can be fit into 497 7 times, resulting in a remainder of 56.
The number 7 becomes the next digit in our result. 
Result so far: 13037.0
Subtracting 441 from 497 leaves us with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 7:
If we divide 560 by 63, we get 8 and a remainder of 56.
Record the quotient 8 as the next digit in the result. 
Result so far: 13037.8
Subtract 504 from 560 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Let's proceed to step 8:
The number 63 fits into 560 8 times, leaving a remainder of 56.
The number 8 becomes the next digit in our result. 
Result so far: 13037.88
If we subtract 504 from 560, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

The final outcome is 13037.88, with a leftover of 0.056.