We divide 63143255 by 210
We want to figure out the number of times 63143255 can be divided by 210.

Advancing to step 1:
6 divided by 210 is 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 210

Let's proceed to step 2:
When dividing 63 by 210, we get 0 with a remainder of 63.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 63 leaves us with 63.
Append the next digit (1) from the dividend to 63 and continue with: 631 / 210

Advancing to step 3:
210 goes into 631 3 times with a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we subtract 630 from 631, we get 1.
Include the next digit (4) from the dividend after 1, then repeat: 14 / 210

On to step 4:
The number 210 fits into 14 0 times, leaving a remainder of 14.
The number 0 becomes the next digit in our result. 
Result so far: 30.0
Subtracting 0 from 14 leaves us with 14.
Take the next digit (3) from the dividend and append it to 14, then repeat: 143 / 210

Moving on to step 5:
210 can be fit into 143 0 times, resulting in a remainder of 143.
The number 0 becomes the next digit in our result. 
Result so far: 300.0
Subtract 0 from 143 to get 143.
Bring next digit (2) of the dividend behind the 143 and repeat the process: 1432 / 210

Step 6:
The number 210 fits into 1432 6 times, leaving a remainder of 172.
Put 6 as the next digit of the answer. 
Result so far: 3006.0
Subtracting 1260 from 1432 leaves us with 172.
Bring next digit (5) of the dividend behind the 172 and repeat the process: 1725 / 210

Step 7:
If we divide 1725 by 210, we get 8 and a remainder of 45.
Write down 8 as next digit of the result. 
Result so far: 30068.0
If we take 1680 away from 1725, we end up with 45.
Take the next digit (5) from the dividend and append it to 45, then repeat: 455 / 210

On to step 8:
455 divided by 210 is 2 with a remainder of 35.
The next digit of our result is 2. 
Result so far: 300682.0
Deduct 420 from 455 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Step 9:
350 divided by 210 is 1 with a remainder of 140.
Write down 1 as next digit of the result. 
Result so far: 300682.1
If we subtract 210 from 350, we get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

On to step 10:
If we divide 1400 by 210, we get 6 and a remainder of 140.
Use 6 as the next digit of our solution. 
Result so far: 300682.16
Subtracting 1260 from 1400 leaves us with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Let's proceed to step 11:
The number 210 fits into 1400 6 times, leaving a remainder of 140.
Use 6 as the next digit of our solution. 
Result so far: 300682.166
The remainder is 140 after subtracting 1260 from 1400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Our division results in 300682.166 with a remaining 0.014.