Alright, let's work through 3872 times 8670 step by step
3872 × 8670 = 8670 × (3872)
+ 8670 × 2 that equals 17340
+ 8670 × 70 what gives us 606900
+ 8670 × 800 that is equal 6936000
+ 8670 × 3000 what gives us 26010000

= 33570240
