Alright, let's work through 54235822 times 66663697 step by step
54235822 × 66663697 = 66663697 × (54235822)
+ 66663697 × 2 producing 133327394
+ 66663697 × 20 giving us 1333273940
+ 66663697 × 800 that equals 53330957600
+ 66663697 × 5000 producing 333318485000
+ 66663697 × 30000 that equals 1999910910000
+ 66663697 × 200000 yielding 13332739400000
+ 66663697 × 4000000 that results in 266654788000000
+ 66663697 × 50000000 that equals 3333184850000000

= 3615560404353934
