Alright, let's work through 89719348 times 47163242 step by step
89719348 × 47163242 = 47163242 × (89719348)
+ 47163242 × 8 what gives us 377305936
+ 47163242 × 40 that equals 1886529680
+ 47163242 × 300 that equals 14148972600
+ 47163242 × 9000 that equals 424469178000
+ 47163242 × 10000 what gives us 471632420000
+ 47163242 × 700000 yielding 33014269400000
+ 47163242 × 9000000 producing 424469178000000
+ 47163242 × 80000000 yielding 3773059360000000

= 4231455321806216
