Alright, let's work through 842646 times 74578604 step by step
842646 × 74578604 = 74578604 × (842646)
+ 74578604 × 6 resulting in 447471624
+ 74578604 × 40 which equals 2983144160
+ 74578604 × 600 that equals 44747162400
+ 74578604 × 2000 what gives us 149157208000
+ 74578604 × 40000 what gives us 2983144160000
+ 74578604 × 800000 yielding 59662883200000

= 62843362346184
