Alright, let's work through 84070314 times 65848437 step by step
84070314 × 65848437 = 65848437 × (84070314)
+ 65848437 × 4 which equals 263393748
+ 65848437 × 10 yielding 658484370
+ 65848437 × 300 that is equal 19754531100
+ 65848437 × 0000 that equals 0
+ 65848437 × 70000 that results in 4609390590000
+ 65848437 × 000000 which equals 0
+ 65848437 × 4000000 that results in 263393748000000
+ 65848437 × 80000000 what gives us 5267874960000000

= 5535898774999218
