Alright, let's work through 3558 times 861 step by step
3558 × 861 = 861 × (3558)
+ 861 × 8 that is equal 6888
+ 861 × 50 resulting in 43050
+ 861 × 500 yielding 430500
+ 861 × 3000 that is equal 2583000

= 3063438
