Alright, let's work through 86484140 times 48701221 step by step
86484140 × 48701221 = 48701221 × (86484140)
+ 48701221 × 0 that results in 0
+ 48701221 × 40 that equals 1948048840
+ 48701221 × 100 which equals 4870122100
+ 48701221 × 4000 producing 194804884000
+ 48701221 × 80000 that results in 3896097680000
+ 48701221 × 400000 producing 19480488400000
+ 48701221 × 6000000 producing 292207326000000
+ 48701221 × 80000000 yielding 3896097680000000

= 4211883215134940
