Alright, let's work through 78517671 times 43498481 step by step
78517671 × 43498481 = 43498481 × (78517671)
+ 43498481 × 1 that equals 43498481
+ 43498481 × 70 what gives us 3044893670
+ 43498481 × 600 yielding 26099088600
+ 43498481 × 7000 yielding 304489367000
+ 43498481 × 10000 that is equal 434984810000
+ 43498481 × 500000 yielding 21749240500000
+ 43498481 × 8000000 producing 347987848000000
+ 43498481 × 70000000 what gives us 3044893670000000

= 3415399420157751
