Alright, let's work through 39042134 times 73172439 step by step
39042134 × 73172439 = 73172439 × (39042134)
+ 73172439 × 4 resulting in 292689756
+ 73172439 × 30 resulting in 2195173170
+ 73172439 × 100 which equals 7317243900
+ 73172439 × 2000 producing 146344878000
+ 73172439 × 40000 giving us 2926897560000
+ 73172439 × 000000 producing 0
+ 73172439 × 9000000 giving us 658551951000000
+ 73172439 × 30000000 what gives us 2195173170000000

= 2856808168544826
