Alright, let's work through 83463799 times 39564106 step by step
83463799 × 39564106 = 39564106 × (83463799)
+ 39564106 × 9 that equals 356076954
+ 39564106 × 90 giving us 3560769540
+ 39564106 × 700 which equals 27694874200
+ 39564106 × 3000 what gives us 118692318000
+ 39564106 × 60000 that results in 2373846360000
+ 39564106 × 400000 which equals 15825642400000
+ 39564106 × 3000000 that is equal 118692318000000
+ 39564106 × 80000000 what gives us 3165128480000000

= 3302170590798694
