Alright, let's work through 1851 times 618 step by step
1851 × 618 = 618 × (1851)
+ 618 × 1 what gives us 618
+ 618 × 50 which equals 30900
+ 618 × 800 resulting in 494400
+ 618 × 1000 that equals 618000

= 1143918
