Alright, let's work through 94066364 times 6836421 step by step
94066364 × 6836421 = 6836421 × (94066364)
+ 6836421 × 4 yielding 27345684
+ 6836421 × 60 what gives us 410185260
+ 6836421 × 300 giving us 2050926300
+ 6836421 × 6000 which equals 41018526000
+ 6836421 × 60000 what gives us 410185260000
+ 6836421 × 000000 that equals 0
+ 6836421 × 4000000 that equals 27345684000000
+ 6836421 × 90000000 yielding 615277890000000

= 643077266243244
