Alright, let's work through 67699894 times 31653501 step by step
67699894 × 31653501 = 31653501 × (67699894)
+ 31653501 × 4 which equals 126614004
+ 31653501 × 90 what gives us 2848815090
+ 31653501 × 800 resulting in 25322800800
+ 31653501 × 9000 what gives us 284881509000
+ 31653501 × 90000 that equals 2848815090000
+ 31653501 × 600000 that is equal 18992100600000
+ 31653501 × 7000000 that is equal 221574507000000
+ 31653501 × 60000000 that equals 1899210060000000

= 2142938662428894
