We're dividing 860721 by 63 
We want to figure out the number of times 860721 can be divided by 63.

Step 1:
If we divide 8 by 63, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 63

Moving on to step 2:
The number 63 fits into 86 1 times, leaving a remainder of 23.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 63 from 86 and we're left with 23.
Take the next digit (0) from the dividend and append it to 23, then repeat: 230 / 63

Going ahead to step 3:
The number 63 fits into 230 3 times, leaving a remainder of 41.
Use 3 as the next digit of our solution. 
Result so far: 13.0
Deduct 189 from 230 and we're left with 41.
Grab the next digit (7) from the dividend, add it to 41, then carry on: 417 / 63

Step 4:
When dividing 417 by 63, we get 6 with a remainder of 39.
The next digit of our result is 6. 
Result so far: 136.0
The remainder is 39 after subtracting 378 from 417.
Grab the next digit (2) from the dividend, add it to 39, then carry on: 392 / 63

Moving on to step 5:
The number 63 fits into 392 6 times, leaving a remainder of 14.
The next digit of our result is 6. 
Result so far: 1366.0
Subtract 378 from 392 to get 14.
Append the next digit (1) from the dividend to 14 and continue with: 141 / 63

On to step 6:
If we divide 141 by 63, we get 2 and a remainder of 15.
Use 2 as the next digit of our solution. 
Result so far: 13662.0
Subtracting 126 from 141 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 7:
The number 63 fits into 150 2 times, leaving a remainder of 24.
Record the quotient 2 as the next digit in the result. 
Result so far: 13662.2
Subtracting 126 from 150 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 8:
240 divided by 63 is 3 with a remainder of 51.
The next digit of our result is 3. 
Result so far: 13662.23
Subtracting 189 from 240 leaves us with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Moving on to step 9:
510 divided by 63 is 8 with a remainder of 6.
Put 8 as the next digit of the answer. 
Result so far: 13662.238
Subtracting 504 from 510 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 10:
If we divide 60 by 63, we get 0 and a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 13662.238
Subtracting 0 from 60 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 11:
63 can be fit into 600 9 times, resulting in a remainder of 33.
Record the quotient 9 as the next digit in the result. 
Result so far: 13662.23809
Subtract 567 from 600 to get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Going ahead to step 12:
If we divide 330 by 63, we get 5 and a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 13662.238095
Subtract 315 from 330 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 13:
When dividing 150 by 63, we get 2 with a remainder of 24.
The next digit of our result is 2. 
Result so far: 13662.2380952
Subtracting 126 from 150 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 14:
63 can be fit into 240 3 times, resulting in a remainder of 51.
The next digit of our result is 3. 
Result so far: 13662.23809523
Deduct 189 from 240 and we're left with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

The final outcome is 13662.23809523, with a leftover of 5.1e-08.