Let's calculate 99787004 x 99815930
99787004 × 99815930 = 99815930 × (99787004)
+ 99815930 × 4 producing 399263720
+ 99815930 × 00 producing 0
+ 99815930 × 000 what gives us 0
+ 99815930 × 7000 what gives us 698711510000
+ 99815930 × 80000 yielding 7985274400000
+ 99815930 × 700000 that results in 69871151000000
+ 99815930 × 9000000 producing 898343370000000
+ 99815930 × 90000000 producing 8983433700000000

= 9960332606173720
