Alright, let's work through 83964957 times 51932741 step by step
83964957 × 51932741 = 51932741 × (83964957)
+ 51932741 × 7 giving us 363529187
+ 51932741 × 50 producing 2596637050
+ 51932741 × 900 that equals 46739466900
+ 51932741 × 4000 what gives us 207730964000
+ 51932741 × 60000 producing 3115964460000
+ 51932741 × 900000 what gives us 46739466900000
+ 51932741 × 3000000 that results in 155798223000000
+ 51932741 × 80000000 that equals 4154619280000000

= 4360530364957137
