Alright, let's work through 84374147 times 84364541 step by step
84374147 × 84364541 = 84364541 × (84374147)
+ 84364541 × 7 that results in 590551787
+ 84364541 × 40 giving us 3374581640
+ 84364541 × 100 that is equal 8436454100
+ 84364541 × 4000 that is equal 337458164000
+ 84364541 × 70000 what gives us 5905517870000
+ 84364541 × 300000 resulting in 25309362300000
+ 84364541 × 4000000 that is equal 337458164000000
+ 84364541 × 80000000 producing 6749163280000000

= 7118186183921527
