Perform the following operations.
1. Find the sum of the following binary no 111010111011, 1011110110 and 11110111.
2. Subtract 110101110111 from # 1.
3. Find the product of 1111 and # 2.
4. Divide # 3 by 11110111.
5. Find the sum of # 1, # 2, and # 3.
6. Subtract from the sum of # 2 and # 3, # 1.
7. Find the quotient of # 6 and 1010101.
8. From the sum of # 5 and # 6, subtract 10001000.
9. Divide # 8 by 1100000.
10. Find the difference of # 5 and # 8.