We're dividing 81516503 by 635 
We're looking to find how many times 635 goes into 81516503.

Going ahead to step 1:
635 goes into 8 0 times with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 635

Going ahead to step 2:
81 divided by 635 is 0 with a remainder of 81.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 81 after subtracting 0 from 81.
Bring next digit (5) of the dividend behind the 81 and repeat the process: 815 / 635

Step 3:
If we divide 815 by 635, we get 1 and a remainder of 180.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 635 from 815 to get 180.
Grab the next digit (1) from the dividend, add it to 180, then carry on: 1801 / 635

Step 4:
1801 divided by 635 is 2 with a remainder of 531.
The next digit of our result is 2. 
Result so far: 12.0
The remainder is 531 after subtracting 1270 from 1801.
Fetch the next digit (6) from the dividend, attach it to 531 and continue: 5316 / 635

Going ahead to step 5:
When dividing 5316 by 635, we get 8 with a remainder of 236.
Record the quotient 8 as the next digit in the result. 
Result so far: 128.0
The remainder is 236 after subtracting 5080 from 5316.
Bring next digit (5) of the dividend behind the 236 and repeat the process: 2365 / 635

Step 6:
635 can be fit into 2365 3 times, resulting in a remainder of 460.
The next digit of our result is 3. 
Result so far: 1283.0
If we take 1905 away from 2365, we end up with 460.
Include the next digit (0) from the dividend after 460, then repeat: 4600 / 635

Going ahead to step 7:
When dividing 4600 by 635, we get 7 with a remainder of 155.
Use 7 as the next digit of our solution. 
Result so far: 12837.0
Deduct 4445 from 4600 and we're left with 155.
Fetch the next digit (3) from the dividend, attach it to 155 and continue: 1553 / 635

Moving on to step 8:
1553 divided by 635 is 2 with a remainder of 283.
Record the quotient 2 as the next digit in the result. 
Result so far: 128372.0
If we subtract 1270 from 1553, we get 283.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2830, and continue the process.

Advancing to step 9:
If we divide 2830 by 635, we get 4 and a remainder of 290.
Write down 4 as next digit of the result. 
Result so far: 128372.4
The remainder is 290 after subtracting 2540 from 2830.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

On to step 10:
635 can be fit into 2900 4 times, resulting in a remainder of 360.
Record the quotient 4 as the next digit in the result. 
Result so far: 128372.44
If we take 2540 away from 2900, we end up with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

The final result is 128372.44 with a remainder of 0.36.