Alright, let's work through 84094786 times 53811938 step by step
84094786 × 53811938 = 53811938 × (84094786)
+ 53811938 × 6 which equals 322871628
+ 53811938 × 80 which equals 4304955040
+ 53811938 × 700 giving us 37668356600
+ 53811938 × 4000 giving us 215247752000
+ 53811938 × 90000 yielding 4843074420000
+ 53811938 × 000000 what gives us 0
+ 53811938 × 4000000 which equals 215247752000000
+ 53811938 × 80000000 which equals 4304955040000000

= 4525303410355268
