Let's calculate 64370845 x 91089164
64370845 × 91089164 = 91089164 × (64370845)
+ 91089164 × 5 yielding 455445820
+ 91089164 × 40 producing 3643566560
+ 91089164 × 800 that results in 72871331200
+ 91089164 × 0000 giving us 0
+ 91089164 × 70000 yielding 6376241480000
+ 91089164 × 300000 producing 27326749200000
+ 91089164 × 4000000 that results in 364356656000000
+ 91089164 × 60000000 yielding 5465349840000000

= 5863486457023580
