Alright, let's work through 42874235 times 64597390 step by step
42874235 × 64597390 = 64597390 × (42874235)
+ 64597390 × 5 that results in 322986950
+ 64597390 × 30 producing 1937921700
+ 64597390 × 200 yielding 12919478000
+ 64597390 × 4000 that is equal 258389560000
+ 64597390 × 70000 producing 4521817300000
+ 64597390 × 800000 that is equal 51677912000000
+ 64597390 × 2000000 which equals 129194780000000
+ 64597390 × 40000000 resulting in 2583895600000000

= 2769563679246650
