Alright, let's work through 7428 times 7806 step by step
7428 × 7806 = 7806 × (7428)
+ 7806 × 8 that results in 62448
+ 7806 × 20 yielding 156120
+ 7806 × 400 resulting in 3122400
+ 7806 × 7000 that equals 54642000

= 57982968
