We look at the division of 66649247 by 815 
We want to figure out the number of times 66649247 can be divided by 815.

Moving on to step 1:
6 divided by 815 is 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 815

Moving on to step 2:
If we divide 66 by 815, we get 0 and a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Bring next digit (6) of the dividend behind the 66 and repeat the process: 666 / 815

Let's proceed to step 3:
The number 815 fits into 666 0 times, leaving a remainder of 666.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 666, we end up with 666.
Bring next digit (4) of the dividend behind the 666 and repeat the process: 6664 / 815

Moving on to step 4:
If we divide 6664 by 815, we get 8 and a remainder of 144.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
If we subtract 6520 from 6664, we get 144.
Bring next digit (9) of the dividend behind the 144 and repeat the process: 1449 / 815

Going ahead to step 5:
If we divide 1449 by 815, we get 1 and a remainder of 634.
The number 1 becomes the next digit in our result. 
Result so far: 81.0
If we subtract 815 from 1449, we get 634.
Include the next digit (2) from the dividend after 634, then repeat: 6342 / 815

Going ahead to step 6:
815 can be fit into 6342 7 times, resulting in a remainder of 637.
Write down 7 as next digit of the result. 
Result so far: 817.0
Subtract 5705 from 6342 to get 637.
Take the next digit (4) from the dividend and append it to 637, then repeat: 6374 / 815

Moving on to step 7:
When dividing 6374 by 815, we get 7 with a remainder of 669.
Put 7 as the next digit of the answer. 
Result so far: 8177.0
Deduct 5705 from 6374 and we're left with 669.
Include the next digit (7) from the dividend after 669, then repeat: 6697 / 815

Going ahead to step 8:
6697 divided by 815 is 8 with a remainder of 177.
Write down 8 as next digit of the result. 
Result so far: 81778.0
If we take 6520 away from 6697, we end up with 177.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1770, and continue the process.

Going ahead to step 9:
1770 divided by 815 is 2 with a remainder of 140.
Put 2 as the next digit of the answer. 
Result so far: 81778.2
If we subtract 1630 from 1770, 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:
815 goes into 1400 1 times with a remainder of 585.
Put 1 as the next digit of the answer. 
Result so far: 81778.21
Subtracting 815 from 1400 leaves us with 585.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5850, and continue the process.

Let's proceed to step 11:
5850 divided by 815 is 7 with a remainder of 145.
Write down 7 as next digit of the result. 
Result so far: 81778.217
The remainder is 145 after subtracting 5705 from 5850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Advancing to step 12:
When dividing 1450 by 815, we get 1 with a remainder of 635.
Use 1 as the next digit of our solution. 
Result so far: 81778.2171
Subtract 815 from 1450 to get 635.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6350, and continue the process.

Going ahead to step 13:
When dividing 6350 by 815, we get 7 with a remainder of 645.
Record the quotient 7 as the next digit in the result. 
Result so far: 81778.21717
If we subtract 5705 from 6350, we get 645.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6450, and continue the process.

Moving on to step 14:
815 can be fit into 6450 7 times, resulting in a remainder of 745.
Use 7 as the next digit of our solution. 
Result so far: 81778.217177
If we take 5705 away from 6450, we end up with 745.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7450, and continue the process.

After the division, we end up with 81778.217177 and a remainder of 7.45e-05.