Alright, let's work through 1866 times 9925 step by step
1866 × 9925 = 9925 × (1866)
+ 9925 × 6 yielding 59550
+ 9925 × 60 producing 595500
+ 9925 × 800 which equals 7940000
+ 9925 × 1000 yielding 9925000

= 18520050
