Alright, let's work through 7140 times 4226 step by step
7140 × 4226 = 4226 × (7140)
+ 4226 × 0 that results in 0
+ 4226 × 40 which equals 169040
+ 4226 × 100 that equals 422600
+ 4226 × 7000 producing 29582000

= 30173640
