Alright, let's work through 4788 times 4156 step by step
4788 × 4156 = 4156 × (4788)
+ 4156 × 8 giving us 33248
+ 4156 × 80 that equals 332480
+ 4156 × 700 what gives us 2909200
+ 4156 × 4000 yielding 16624000

= 19898928
