Alright, let's work through 81048164 times 98543849 step by step
81048164 × 98543849 = 98543849 × (81048164)
+ 98543849 × 4 that is equal 394175396
+ 98543849 × 60 what gives us 5912630940
+ 98543849 × 100 yielding 9854384900
+ 98543849 × 8000 giving us 788350792000
+ 98543849 × 40000 that is equal 3941753960000
+ 98543849 × 000000 what gives us 0
+ 98543849 × 1000000 what gives us 98543849000000
+ 98543849 × 80000000 which equals 7883507920000000

= 7986798034943236
