Alright, let's work through 42303597 times 84223754 step by step
42303597 × 84223754 = 84223754 × (42303597)
+ 84223754 × 7 producing 589566278
+ 84223754 × 90 which equals 7580137860
+ 84223754 × 500 yielding 42111877000
+ 84223754 × 3000 which equals 252671262000
+ 84223754 × 00000 that equals 0
+ 84223754 × 300000 that results in 25267126200000
+ 84223754 × 2000000 yielding 168447508000000
+ 84223754 × 40000000 what gives us 3368950160000000

= 3562967747043138
