Alright, let's work through 3660 times 7030 step by step
3660 × 7030 = 7030 × (3660)
+ 7030 × 0 that equals 0
+ 7030 × 60 that is equal 421800
+ 7030 × 600 yielding 4218000
+ 7030 × 3000 which equals 21090000

= 25729800
