We look at the division of 66515601 by 824 
We want to figure out the number of times 66515601 can be divided by 824.

Advancing to step 1:
When dividing 6 by 824, we get 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 824

Going ahead to step 2:
66 divided by 824 is 0 with a remainder of 66.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 66, we get 66.
Take the next digit (5) from the dividend and append it to 66, then repeat: 665 / 824

On to step 3:
665 divided by 824 is 0 with a remainder of 665.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 665 to get 665.
Grab the next digit (1) from the dividend, add it to 665, then carry on: 6651 / 824

Step 4:
If we divide 6651 by 824, we get 8 and a remainder of 59.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtracting 6592 from 6651 leaves us with 59.
Take the next digit (5) from the dividend and append it to 59, then repeat: 595 / 824

Let's proceed to step 5:
The number 824 fits into 595 0 times, leaving a remainder of 595.
Write down 0 as next digit of the result. 
Result so far: 80.0
Deduct 0 from 595 and we're left with 595.
Fetch the next digit (6) from the dividend, attach it to 595 and continue: 5956 / 824

Moving on to step 6:
824 goes into 5956 7 times with a remainder of 188.
The next digit of our result is 7. 
Result so far: 807.0
If we take 5768 away from 5956, we end up with 188.
Grab the next digit (0) from the dividend, add it to 188, then carry on: 1880 / 824

On to step 7:
The number 824 fits into 1880 2 times, leaving a remainder of 232.
The next digit of our result is 2. 
Result so far: 8072.0
If we subtract 1648 from 1880, we get 232.
Take the next digit (1) from the dividend and append it to 232, then repeat: 2321 / 824

Advancing to step 8:
2321 divided by 824 is 2 with a remainder of 673.
Record the quotient 2 as the next digit in the result. 
Result so far: 80722.0
The remainder is 673 after subtracting 1648 from 2321.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6730, and continue the process.

Advancing to step 9:
When dividing 6730 by 824, we get 8 with a remainder of 138.
Record the quotient 8 as the next digit in the result. 
Result so far: 80722.8
Subtracting 6592 from 6730 leaves us with 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

Going ahead to step 10:
1380 divided by 824 is 1 with a remainder of 556.
The number 1 becomes the next digit in our result. 
Result so far: 80722.81
The remainder is 556 after subtracting 824 from 1380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5560, and continue the process.

Going ahead to step 11:
When dividing 5560 by 824, we get 6 with a remainder of 616.
Record the quotient 6 as the next digit in the result. 
Result so far: 80722.816
Subtracting 4944 from 5560 leaves us with 616.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6160, and continue the process.

Going ahead to step 12:
824 goes into 6160 7 times with a remainder of 392.
Use 7 as the next digit of our solution. 
Result so far: 80722.8167
The remainder is 392 after subtracting 5768 from 6160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

Step 13:
824 goes into 3920 4 times with a remainder of 624.
Record the quotient 4 as the next digit in the result. 
Result so far: 80722.81674
If we subtract 3296 from 3920, 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.

Moving on to step 14:
If we divide 6240 by 824, we get 7 and a remainder of 472.
Record the quotient 7 as the next digit in the result. 
Result so far: 80722.816747
Subtract 5768 from 6240 to get 472.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4720, and continue the process.

Advancing to step 15:
The number 824 fits into 4720 5 times, leaving a remainder of 600.
The number 5 becomes the next digit in our result. 
Result so far: 80722.8167475
Deduct 4120 from 4720 and we're left with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Let's proceed to step 16:
6000 divided by 824 is 7 with a remainder of 232.
Record the quotient 7 as the next digit in the result. 
Result so far: 80722.81674757
The remainder is 232 after subtracting 5768 from 6000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

The quotient of the division is 80722.81674757, and the remainder is 2.32e-07.