We look at the division of 81504997 by 630 
We want to divide 81504997 by 630.

On to step 1:
630 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 630

Advancing to step 2:
630 can be fit into 81 0 times, resulting in a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 81, we end up with 81.
Bring next digit (5) of the dividend behind the 81 and repeat the process: 815 / 630

Let's proceed to step 3:
If we divide 815 by 630, we get 1 and a remainder of 185.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 185 after subtracting 630 from 815.
Take the next digit (0) from the dividend and append it to 185, then repeat: 1850 / 630

Let's proceed to step 4:
630 goes into 1850 2 times with a remainder of 590.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
The remainder is 590 after subtracting 1260 from 1850.
Take the next digit (4) from the dividend and append it to 590, then repeat: 5904 / 630

Going ahead to step 5:
When dividing 5904 by 630, we get 9 with a remainder of 234.
Write down 9 as next digit of the result. 
Result so far: 129.0
If we subtract 5670 from 5904, we get 234.
Take the next digit (9) from the dividend and append it to 234, then repeat: 2349 / 630

Step 6:
2349 divided by 630 is 3 with a remainder of 459.
The next digit of our result is 3. 
Result so far: 1293.0
Subtract 1890 from 2349 to get 459.
Append the next digit (9) from the dividend to 459 and continue with: 4599 / 630

Step 7:
630 goes into 4599 7 times with a remainder of 189.
The next digit of our result is 7. 
Result so far: 12937.0
Subtract 4410 from 4599 to get 189.
Append the next digit (7) from the dividend to 189 and continue with: 1897 / 630

Step 8:
If we divide 1897 by 630, we get 3 and a remainder of 7.
Use 3 as the next digit of our solution. 
Result so far: 129373.0
Subtract 1890 from 1897 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 9:
When dividing 70 by 630, we get 0 with a remainder of 70.
Record the quotient 0 as the next digit in the result. 
Result so far: 129373.0
If we subtract 0 from 70, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 10:
630 goes into 700 1 times with a remainder of 70.
Record the quotient 1 as the next digit in the result. 
Result so far: 129373.01
Subtract 630 from 700 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 11:
630 can be fit into 700 1 times, resulting in a remainder of 70.
The next digit of our result is 1. 
Result so far: 129373.011
Subtract 630 from 700 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

After the division, we end up with 129373.011 and a remainder of 0.007.