646108 ÷ 63 
Let's see how many times 63 fits into 646108.

On to step 1:
63 goes into 6 0 times with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 63

Advancing to step 2:
If we divide 64 by 63, we get 1 and a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 63 from 64 leaves us with 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 63

Advancing to step 3:
If we divide 16 by 63, we get 0 and a remainder of 16.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Subtracting 0 from 16 leaves us with 16.
Take the next digit (1) from the dividend and append it to 16, then repeat: 161 / 63

Let's proceed to step 4:
161 divided by 63 is 2 with a remainder of 35.
The next digit of our result is 2. 
Result so far: 102.0
Subtracting 126 from 161 leaves us with 35.
Fetch the next digit (0) from the dividend, attach it to 35 and continue: 350 / 63

Step 5:
The number 63 fits into 350 5 times, leaving a remainder of 35.
Put 5 as the next digit of the answer. 
Result so far: 1025.0
If we subtract 315 from 350, we get 35.
Grab the next digit (8) from the dividend, add it to 35, then carry on: 358 / 63

Advancing to step 6:
If we divide 358 by 63, we get 5 and a remainder of 43.
Record the quotient 5 as the next digit in the result. 
Result so far: 10255.0
The remainder is 43 after subtracting 315 from 358.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Let's proceed to step 7:
63 can be fit into 430 6 times, resulting in a remainder of 52.
The next digit of our result is 6. 
Result so far: 10255.6
Subtracting 378 from 430 leaves us with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 8:
63 can be fit into 520 8 times, resulting in a remainder of 16.
Record the quotient 8 as the next digit in the result. 
Result so far: 10255.68
If we take 504 away from 520, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 9:
The number 63 fits into 160 2 times, leaving a remainder of 34.
Record the quotient 2 as the next digit in the result. 
Result so far: 10255.682
If we subtract 126 from 160, we get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Step 10:
When dividing 340 by 63, we get 5 with a remainder of 25.
The next digit of our result is 5. 
Result so far: 10255.6825
If we subtract 315 from 340, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 11:
63 goes into 250 3 times with a remainder of 61.
Use 3 as the next digit of our solution. 
Result so far: 10255.68253
The remainder is 61 after subtracting 189 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

On to step 12:
63 can be fit into 610 9 times, resulting in a remainder of 43.
Record the quotient 9 as the next digit in the result. 
Result so far: 10255.682539
If we take 567 away from 610, we end up with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Step 13:
If we divide 430 by 63, we get 6 and a remainder of 52.
The number 6 becomes the next digit in our result. 
Result so far: 10255.6825396
Subtracting 378 from 430 leaves us with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

On to step 14:
63 can be fit into 520 8 times, resulting in a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 10255.68253968
The remainder is 16 after subtracting 504 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 10255.68253968, with a leftover of 1.6e-08.