Alright, let's work through 81655416 times 37789986 step by step
81655416 × 37789986 = 37789986 × (81655416)
+ 37789986 × 6 giving us 226739916
+ 37789986 × 10 that results in 377899860
+ 37789986 × 400 resulting in 15115994400
+ 37789986 × 5000 giving us 188949930000
+ 37789986 × 50000 which equals 1889499300000
+ 37789986 × 600000 which equals 22673991600000
+ 37789986 × 1000000 yielding 37789986000000
+ 37789986 × 80000000 resulting in 3023198880000000

= 3085757027464176
