We look at the division of 72515830 by 664 
Our goal is to divide 72515830 by 664.

Step 1:
The number 664 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Append the next digit (2) from the dividend to 7 and continue with: 72 / 664

Advancing to step 2:
664 can be fit into 72 0 times, resulting in a remainder of 72.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 72, we get 72.
Bring next digit (5) of the dividend behind the 72 and repeat the process: 725 / 664

Going ahead to step 3:
The number 664 fits into 725 1 times, leaving a remainder of 61.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 664 from 725 to get 61.
Fetch the next digit (1) from the dividend, attach it to 61 and continue: 611 / 664

Advancing to step 4:
664 goes into 611 0 times with a remainder of 611.
Use 0 as the next digit of our solution. 
Result so far: 10.0
Subtracting 0 from 611 leaves us with 611.
Bring next digit (5) of the dividend behind the 611 and repeat the process: 6115 / 664

Moving on to step 5:
When dividing 6115 by 664, we get 9 with a remainder of 139.
Write down 9 as next digit of the result. 
Result so far: 109.0
Subtracting 5976 from 6115 leaves us with 139.
Bring next digit (8) of the dividend behind the 139 and repeat the process: 1398 / 664

Going ahead to step 6:
664 can be fit into 1398 2 times, resulting in a remainder of 70.
Record the quotient 2 as the next digit in the result. 
Result so far: 1092.0
If we take 1328 away from 1398, we end up with 70.
Bring next digit (3) of the dividend behind the 70 and repeat the process: 703 / 664

Advancing to step 7:
664 goes into 703 1 times with a remainder of 39.
Write down 1 as next digit of the result. 
Result so far: 10921.0
If we subtract 664 from 703, we get 39.
Bring next digit (0) of the dividend behind the 39 and repeat the process: 390 / 664

Moving on to step 8:
390 divided by 664 is 0 with a remainder of 390.
Put 0 as the next digit of the answer. 
Result so far: 109210.0
If we take 0 away from 390, we end up with 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Let's proceed to step 9:
3900 divided by 664 is 5 with a remainder of 580.
Use 5 as the next digit of our solution. 
Result so far: 109210.5
Subtract 3320 from 3900 to get 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Step 10:
5800 divided by 664 is 8 with a remainder of 488.
Write down 8 as next digit of the result. 
Result so far: 109210.58
Subtract 5312 from 5800 to get 488.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4880, and continue the process.

Let's proceed to step 11:
664 goes into 4880 7 times with a remainder of 232.
Record the quotient 7 as the next digit in the result. 
Result so far: 109210.587
If we subtract 4648 from 4880, we get 232.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

Moving on to step 12:
2320 divided by 664 is 3 with a remainder of 328.
The next digit of our result is 3. 
Result so far: 109210.5873
Subtracting 1992 from 2320 leaves us with 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

Let's proceed to step 13:
If we divide 3280 by 664, we get 4 and a remainder of 624.
The number 4 becomes the next digit in our result. 
Result so far: 109210.58734
If we subtract 2656 from 3280, we get 624.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6240, and continue the process.

Going ahead to step 14:
664 can be fit into 6240 9 times, resulting in a remainder of 264.
The number 9 becomes the next digit in our result. 
Result so far: 109210.587349
Deduct 5976 from 6240 and we're left with 264.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2640, and continue the process.

Advancing to step 15:
664 can be fit into 2640 3 times, resulting in a remainder of 648.
The number 3 becomes the next digit in our result. 
Result so far: 109210.5873493
Subtract 1992 from 2640 to get 648.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6480, and continue the process.

Step 16:
The number 664 fits into 6480 9 times, leaving a remainder of 504.
The next digit of our result is 9. 
Result so far: 109210.58734939
If we subtract 5976 from 6480, we get 504.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

The final result is 109210.58734939 with a remainder of 5.04e-07.