Alright, let's work through 4428 times 87472100 step by step
4428 × 87472100 = 87472100 × (4428)
+ 87472100 × 8 that is equal 699776800
+ 87472100 × 20 that equals 1749442000
+ 87472100 × 400 giving us 34988840000
+ 87472100 × 4000 that results in 349888400000

= 387326458800
