645858 divided by 63 
We want to figure out the number of times 645858 can be divided by 63.

Going ahead to step 1:
The number 63 fits into 6 0 times, leaving a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 63

Let's proceed 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
The remainder is 1 after subtracting 63 from 64.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 63

On to step 3:
15 divided by 63 is 0 with a remainder of 15.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
If we subtract 0 from 15, we get 15.
Bring next digit (8) of the dividend behind the 15 and repeat the process: 158 / 63

Advancing to step 4:
The number 63 fits into 158 2 times, leaving a remainder of 32.
The next digit of our result is 2. 
Result so far: 102.0
If we take 126 away from 158, we end up with 32.
Take the next digit (5) from the dividend and append it to 32, then repeat: 325 / 63

Going ahead to step 5:
If we divide 325 by 63, we get 5 and a remainder of 10.
The next digit of our result is 5. 
Result so far: 1025.0
The remainder is 10 after subtracting 315 from 325.
Grab the next digit (8) from the dividend, add it to 10, then carry on: 108 / 63

Going ahead to step 6:
If we divide 108 by 63, we get 1 and a remainder of 45.
Put 1 as the next digit of the answer. 
Result so far: 10251.0
If we take 63 away from 108, we end up with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Advancing to step 7:
When dividing 450 by 63, we get 7 with a remainder of 9.
The number 7 becomes the next digit in our result. 
Result so far: 10251.7
Subtract 441 from 450 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 8:
The number 63 fits into 90 1 times, leaving a remainder of 27.
Put 1 as the next digit of the answer. 
Result so far: 10251.71
Subtracting 63 from 90 leaves us 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.

Step 9:
If we divide 270 by 63, we get 4 and a remainder of 18.
The number 4 becomes the next digit in our result. 
Result so far: 10251.714
Subtracting 252 from 270 leaves us 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 10:
180 divided by 63 is 2 with a remainder of 54.
Record the quotient 2 as the next digit in the result. 
Result so far: 10251.7142
The remainder is 54 after subtracting 126 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

On to step 11:
63 can be fit into 540 8 times, resulting in a remainder of 36.
Write down 8 as next digit of the result. 
Result so far: 10251.71428
Deduct 504 from 540 and we're left 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.

Moving on to step 12:
The number 63 fits into 360 5 times, leaving a remainder of 45.
Put 5 as the next digit of the answer. 
Result so far: 10251.714285
Subtracting 315 from 360 leaves us with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Step 13:
63 goes into 450 7 times with a remainder of 9.
The next digit of our result is 7. 
Result so far: 10251.7142857
Deduct 441 from 450 and we're left 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.

Advancing to step 14:
The number 63 fits into 90 1 times, leaving a remainder of 27.
Write down 1 as next digit of the result. 
Result so far: 10251.71428571
If we take 63 away from 90, we end up 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.

In conclusion, the division gives 10251.71428571 with a balance of 2.7e-08.