Alright, let's work through 4872 times 7815 step by step
4872 × 7815 = 7815 × (4872)
+ 7815 × 2 which equals 15630
+ 7815 × 70 giving us 547050
+ 7815 × 800 what gives us 6252000
+ 7815 × 4000 resulting in 31260000

= 38074680
