Alright, let's work through 87134703 times 41778523 step by step
87134703 × 41778523 = 41778523 × (87134703)
+ 41778523 × 3 which equals 125335569
+ 41778523 × 00 producing 0
+ 41778523 × 700 which equals 29244966100
+ 41778523 × 4000 yielding 167114092000
+ 41778523 × 30000 giving us 1253355690000
+ 41778523 × 100000 that results in 4177852300000
+ 41778523 × 7000000 that results in 292449661000000
+ 41778523 × 80000000 that equals 3342281840000000

= 3640359193383669
