Alright, let's work through 99482509 times 64708490 step by step
99482509 × 64708490 = 64708490 × (99482509)
+ 64708490 × 9 that results in 582376410
+ 64708490 × 00 resulting in 0
+ 64708490 × 500 that results in 32354245000
+ 64708490 × 2000 resulting in 129416980000
+ 64708490 × 80000 yielding 5176679200000
+ 64708490 × 400000 giving us 25883396000000
+ 64708490 × 9000000 that equals 582376410000000
+ 64708490 × 90000000 that results in 5823764100000000

= 6437362938801410
