Alright, let's work through 76671504 times 78153930 step by step
76671504 × 78153930 = 78153930 × (76671504)
+ 78153930 × 4 that equals 312615720
+ 78153930 × 00 yielding 0
+ 78153930 × 500 producing 39076965000
+ 78153930 × 1000 producing 78153930000
+ 78153930 × 70000 resulting in 5470775100000
+ 78153930 × 600000 giving us 46892358000000
+ 78153930 × 6000000 what gives us 468923580000000
+ 78153930 × 70000000 that results in 5470775100000000

= 5992179356610720
