Alright, let's work through 42753709 times 61736707 step by step
42753709 × 61736707 = 61736707 × (42753709)
+ 61736707 × 9 that results in 555630363
+ 61736707 × 00 what gives us 0
+ 61736707 × 700 yielding 43215694900
+ 61736707 × 3000 producing 185210121000
+ 61736707 × 50000 producing 3086835350000
+ 61736707 × 700000 that is equal 43215694900000
+ 61736707 × 2000000 what gives us 123473414000000
+ 61736707 × 40000000 producing 2469468280000000

= 2639473205696263
