Alright, let's work through 42839116 times 86701937 step by step
42839116 × 86701937 = 86701937 × (42839116)
+ 86701937 × 6 that results in 520211622
+ 86701937 × 10 producing 867019370
+ 86701937 × 100 that is equal 8670193700
+ 86701937 × 9000 which equals 780317433000
+ 86701937 × 30000 resulting in 2601058110000
+ 86701937 × 800000 producing 69361549600000
+ 86701937 × 2000000 that is equal 173403874000000
+ 86701937 × 40000000 giving us 3468077480000000

= 3714234336567692
