Alright, let's work through 16904825 times 4636478 step by step
16904825 × 4636478 = 4636478 × (16904825)
+ 4636478 × 5 that equals 23182390
+ 4636478 × 20 producing 92729560
+ 4636478 × 800 which equals 3709182400
+ 4636478 × 4000 yielding 18545912000
+ 4636478 × 00000 that equals 0
+ 4636478 × 900000 that results in 4172830200000
+ 4636478 × 6000000 what gives us 27818868000000
+ 4636478 × 10000000 which equals 46364780000000

= 78378849206350
