Alright, let's work through 77134434 times 78470153 step by step
77134434 × 78470153 = 78470153 × (77134434)
+ 78470153 × 4 that results in 313880612
+ 78470153 × 30 giving us 2354104590
+ 78470153 × 400 yielding 31388061200
+ 78470153 × 4000 yielding 313880612000
+ 78470153 × 30000 resulting in 2354104590000
+ 78470153 × 100000 what gives us 7847015300000
+ 78470153 × 7000000 which equals 549291071000000
+ 78470153 × 70000000 yielding 5492910710000000

= 6052750837548402
