Alright, let's work through 78046779 times 15787198 step by step
78046779 × 15787198 = 15787198 × (78046779)
+ 15787198 × 9 that equals 142084782
+ 15787198 × 70 that results in 1105103860
+ 15787198 × 700 giving us 11051038600
+ 15787198 × 6000 yielding 94723188000
+ 15787198 × 40000 what gives us 631487920000
+ 15787198 × 000000 that equals 0
+ 15787198 × 8000000 giving us 126297584000000
+ 15787198 × 70000000 that equals 1105103860000000

= 1232139953335242
