Alright, let's work through 5820 times 9942 step by step
5820 × 9942 = 9942 × (5820)
+ 9942 × 0 that is equal 0
+ 9942 × 20 yielding 198840
+ 9942 × 800 yielding 7953600
+ 9942 × 5000 that equals 49710000

= 57862440
