Alright, let's work through 83970090 times 42547706 step by step
83970090 × 42547706 = 42547706 × (83970090)
+ 42547706 × 0 yielding 0
+ 42547706 × 90 what gives us 3829293540
+ 42547706 × 000 producing 0
+ 42547706 × 0000 resulting in 0
+ 42547706 × 70000 that equals 2978339420000
+ 42547706 × 900000 which equals 38292935400000
+ 42547706 × 3000000 that equals 127643118000000
+ 42547706 × 80000000 which equals 3403816480000000

= 3572734702113540
