We're dividing 866394 by 63 
Our goal is to divide 866394 by 63.

Step 1:
The number 63 fits into 8 0 times, leaving a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 63

On to step 2:
86 divided by 63 is 1 with a remainder of 23.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 63 from 86, we get 23.
Grab the next digit (6) from the dividend, add it to 23, then carry on: 236 / 63

Let's proceed to step 3:
63 can be fit into 236 3 times, resulting in a remainder of 47.
Put 3 as the next digit of the answer. 
Result so far: 13.0
If we take 189 away from 236, we end up with 47.
Grab the next digit (3) from the dividend, add it to 47, then carry on: 473 / 63

On to step 4:
63 can be fit into 473 7 times, resulting in a remainder of 32.
The next digit of our result is 7. 
Result so far: 137.0
Subtracting 441 from 473 leaves us with 32.
Bring next digit (9) of the dividend behind the 32 and repeat the process: 329 / 63

Step 5:
329 divided by 63 is 5 with a remainder of 14.
Record the quotient 5 as the next digit in the result. 
Result so far: 1375.0
If we subtract 315 from 329, we get 14.
Take the next digit (4) from the dividend and append it to 14, then repeat: 144 / 63

Let's proceed to step 6:
When dividing 144 by 63, we get 2 with a remainder of 18.
Put 2 as the next digit of the answer. 
Result so far: 13752.0
If we take 126 away from 144, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 7:
When dividing 180 by 63, we get 2 with a remainder of 54.
Put 2 as the next digit of the answer. 
Result so far: 13752.2
Deduct 126 from 180 and we're left with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Step 8:
63 goes into 540 8 times with a remainder of 36.
The next digit of our result is 8. 
Result so far: 13752.28
If we subtract 504 from 540, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 9:
63 can be fit into 360 5 times, resulting in a remainder of 45.
Record the quotient 5 as the next digit in the result. 
Result so far: 13752.285
The remainder is 45 after subtracting 315 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Moving on to step 10:
63 can be fit into 450 7 times, resulting in a remainder of 9.
Record the quotient 7 as the next digit in the result. 
Result so far: 13752.2857
Subtracting 441 from 450 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 11:
If we divide 90 by 63, we get 1 and a remainder of 27.
Put 1 as the next digit of the answer. 
Result so far: 13752.28571
Deduct 63 from 90 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Going ahead to step 12:
63 can be fit into 270 4 times, resulting in a remainder of 18.
Write down 4 as next digit of the result. 
Result so far: 13752.285714
Subtract 252 from 270 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 13:
63 goes into 180 2 times with a remainder of 54.
The next digit of our result is 2. 
Result so far: 13752.2857142
Deduct 126 from 180 and we're left with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Step 14:
63 can be fit into 540 8 times, resulting in a remainder of 36.
The next digit of our result is 8. 
Result so far: 13752.28571428
If we take 504 away from 540, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

In conclusion, the division gives 13752.28571428 with a balance of 3.6e-08.