Alright, let's work through 1861 times 9661 step by step
1861 × 9661 = 9661 × (1861)
+ 9661 × 1 that results in 9661
+ 9661 × 60 producing 579660
+ 9661 × 800 what gives us 7728800
+ 9661 × 1000 yielding 9661000

= 17979121
