Alright, let's work through 82871992 times 58795584 step by step
82871992 × 58795584 = 58795584 × (82871992)
+ 58795584 × 2 which equals 117591168
+ 58795584 × 90 yielding 5291602560
+ 58795584 × 900 that equals 52916025600
+ 58795584 × 1000 that results in 58795584000
+ 58795584 × 70000 yielding 4115690880000
+ 58795584 × 800000 that equals 47036467200000
+ 58795584 × 2000000 that is equal 117591168000000
+ 58795584 × 80000000 what gives us 4703646720000000

= 4872507166883328
