Alright, let's work through 8364 times 6942 step by step
8364 × 6942 = 6942 × (8364)
+ 6942 × 4 producing 27768
+ 6942 × 60 what gives us 416520
+ 6942 × 300 that results in 2082600
+ 6942 × 8000 yielding 55536000

= 58062888
