Alright, let's work through 78815214 times 29929818 step by step
78815214 × 29929818 = 29929818 × (78815214)
+ 29929818 × 4 that results in 119719272
+ 29929818 × 10 what gives us 299298180
+ 29929818 × 200 resulting in 5985963600
+ 29929818 × 5000 resulting in 149649090000
+ 29929818 × 10000 resulting in 299298180000
+ 29929818 × 800000 yielding 23943854400000
+ 29929818 × 8000000 giving us 239438544000000
+ 29929818 × 70000000 producing 2095087260000000

= 2358925010651052
