79664013 ÷ 990 
Our goal is to divide 79664013 by 990.

On to step 1:
990 goes into 7 0 times with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Include the next digit (9) from the dividend after 7, then repeat: 79 / 990

On to step 2:
The number 990 fits into 79 0 times, leaving a remainder of 79.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 79 and we're left with 79.
Fetch the next digit (6) from the dividend, attach it to 79 and continue: 796 / 990

Advancing to step 3:
If we divide 796 by 990, we get 0 and a remainder of 796.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 796 to get 796.
Fetch the next digit (6) from the dividend, attach it to 796 and continue: 7966 / 990

Step 4:
The number 990 fits into 7966 8 times, leaving a remainder of 46.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtracting 7920 from 7966 leaves us with 46.
Grab the next digit (4) from the dividend, add it to 46, then carry on: 464 / 990

Let's proceed to step 5:
990 can be fit into 464 0 times, resulting in a remainder of 464.
Record the quotient 0 as the next digit in the result. 
Result so far: 80.0
Subtract 0 from 464 to get 464.
Bring next digit (0) of the dividend behind the 464 and repeat the process: 4640 / 990

Going ahead to step 6:
When dividing 4640 by 990, we get 4 with a remainder of 680.
The next digit of our result is 4. 
Result so far: 804.0
Deduct 3960 from 4640 and we're left with 680.
Fetch the next digit (1) from the dividend, attach it to 680 and continue: 6801 / 990

On to step 7:
990 can be fit into 6801 6 times, resulting in a remainder of 861.
Use 6 as the next digit of our solution. 
Result so far: 8046.0
If we take 5940 away from 6801, we end up with 861.
Fetch the next digit (3) from the dividend, attach it to 861 and continue: 8613 / 990

On to step 8:
990 goes into 8613 8 times with a remainder of 693.
Use 8 as the next digit of our solution. 
Result so far: 80468.0
The remainder is 693 after subtracting 7920 from 8613.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6930, and continue the process.

On to step 9:
6930 divided by 990 is 7 with a remainder of 0.
The number 7 becomes the next digit in our result. 
Result so far: 80468.7
Deduct 6930 from 6930 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 10:
If we divide 0 by 990, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 80468.7
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 11:
If we divide 0 by 990, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 80468.7
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 80468.7 with a balance of 0.0.