Alright, let's work through 93865405 times 64203978 step by step
93865405 × 64203978 = 64203978 × (93865405)
+ 64203978 × 5 producing 321019890
+ 64203978 × 00 that is equal 0
+ 64203978 × 400 which equals 25681591200
+ 64203978 × 5000 what gives us 321019890000
+ 64203978 × 60000 yielding 3852238680000
+ 64203978 × 800000 resulting in 51363182400000
+ 64203978 × 3000000 that equals 192611934000000
+ 64203978 × 90000000 resulting in 5778358020000000

= 6026532397581090
