Alright, let's work through 85309364 times 36520099 step by step
85309364 × 36520099 = 36520099 × (85309364)
+ 36520099 × 4 yielding 146080396
+ 36520099 × 60 that equals 2191205940
+ 36520099 × 300 giving us 10956029700
+ 36520099 × 9000 what gives us 328680891000
+ 36520099 × 00000 yielding 0
+ 36520099 × 300000 giving us 10956029700000
+ 36520099 × 5000000 that results in 182600495000000
+ 36520099 × 80000000 that results in 2921607920000000

= 3115506418907036
