Alright, let's work through 42735085 times 76685621 step by step
42735085 × 76685621 = 76685621 × (42735085)
+ 76685621 × 5 producing 383428105
+ 76685621 × 80 resulting in 6134849680
+ 76685621 × 000 producing 0
+ 76685621 × 5000 giving us 383428105000
+ 76685621 × 30000 yielding 2300568630000
+ 76685621 × 700000 what gives us 53679934700000
+ 76685621 × 2000000 giving us 153371242000000
+ 76685621 × 40000000 yielding 3067424840000000

= 3277166531712785
