Let's divide 72104710 by 515
We're looking to find how many times 515 goes into 72104710.

Going ahead to step 1:
When dividing 7 by 515, we get 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Bring next digit (2) of the dividend behind the 7 and repeat the process: 72 / 515

Going ahead to step 2:
515 goes into 72 0 times with a remainder of 72.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 72 after subtracting 0 from 72.
Append the next digit (1) from the dividend to 72 and continue with: 721 / 515

On to step 3:
The number 515 fits into 721 1 times, leaving a remainder of 206.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 515 from 721 leaves us with 206.
Bring next digit (0) of the dividend behind the 206 and repeat the process: 2060 / 515

Going ahead to step 4:
When dividing 2060 by 515, we get 4 with a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
If we take 2060 away from 2060, we end up with 0.
Bring next digit (4) of the dividend behind the 0 and repeat the process: 4 / 515

Moving on to step 5:
When dividing 4 by 515, we get 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 140.0
If we take 0 away from 4, we end up with 4.
Bring next digit (7) of the dividend behind the 4 and repeat the process: 47 / 515

Advancing to step 6:
If we divide 47 by 515, we get 0 and a remainder of 47.
The next digit of our result is 0. 
Result so far: 1400.0
Subtracting 0 from 47 leaves us with 47.
Append the next digit (1) from the dividend to 47 and continue with: 471 / 515

Going ahead to step 7:
If we divide 471 by 515, we get 0 and a remainder of 471.
Record the quotient 0 as the next digit in the result. 
Result so far: 14000.0
If we subtract 0 from 471, we get 471.
Fetch the next digit (0) from the dividend, attach it to 471 and continue: 4710 / 515

Advancing to step 8:
If we divide 4710 by 515, we get 9 and a remainder of 75.
Write down 9 as next digit of the result. 
Result so far: 140009.0
If we subtract 4635 from 4710, we get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Going ahead to step 9:
515 goes into 750 1 times with a remainder of 235.
Use 1 as the next digit of our solution. 
Result so far: 140009.1
If we take 515 away from 750, we end up with 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

On to step 10:
The number 515 fits into 2350 4 times, leaving a remainder of 290.
Use 4 as the next digit of our solution. 
Result so far: 140009.14
If we subtract 2060 from 2350, we get 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Moving on to step 11:
515 can be fit into 2900 5 times, resulting in a remainder of 325.
Put 5 as the next digit of the answer. 
Result so far: 140009.145
If we take 2575 away from 2900, we end up with 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

Step 12:
515 can be fit into 3250 6 times, resulting in a remainder of 160.
The next digit of our result is 6. 
Result so far: 140009.1456
If we subtract 3090 from 3250, we get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

On to step 13:
If we divide 1600 by 515, we get 3 and a remainder of 55.
Record the quotient 3 as the next digit in the result. 
Result so far: 140009.14563
If we subtract 1545 from 1600, we get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Going ahead to step 14:
The number 515 fits into 550 1 times, leaving a remainder of 35.
The next digit of our result is 1. 
Result so far: 140009.145631
The remainder is 35 after subtracting 515 from 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 15:
The number 515 fits into 350 0 times, leaving a remainder of 350.
Record the quotient 0 as the next digit in the result. 
Result so far: 140009.145631
The remainder is 350 after subtracting 0 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Let's proceed to step 16:
If we divide 3500 by 515, we get 6 and a remainder of 410.
Write down 6 as next digit of the result. 
Result so far: 140009.14563106
Subtract 3090 from 3500 to get 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

The final result is 140009.14563106 with a remainder of 4.1e-07.