1. The problem is to divide 78 by 13. $$78 \div 13 = ?$$ We know that $13 \times 6 = 78$, so: $$78 \div 13 = 6$$ 2. Next, divide 264 by 22. $$264 \div 22 = ?$$ Since $22 \times 12 = 264$, we have: $$264 \div 22 = 12$$ 3. Now, divide 315 by 15. $$315 \div 15 = ?$$ Because $15 \times 21 = 315$, the answer is: $$315 \div 15 = 21$$ 4. Then, divide 432 by 24. $$432 \div 24 = ?$$ Since $24 \times 18 = 432$, the result is: $$432 \div 24 = 18$$ 5. Finally, divide 294 by 21. $$294 \div 21 = ?$$ We know $21 \times 14 = 294$, so: $$294 \div 21 = 14$$ These are basic division problems where you determine how many times the divisor fits into the dividend exactly. Final answers: 1. 6 2. 12 3. 21 4. 18 5. 14