Alright, let's work through 83546993 times 76587996 step by step
83546993 × 76587996 = 76587996 × (83546993)
+ 76587996 × 3 that results in 229763988
+ 76587996 × 90 yielding 6892919640
+ 76587996 × 900 which equals 68929196400
+ 76587996 × 6000 producing 459527976000
+ 76587996 × 40000 producing 3063519840000
+ 76587996 × 500000 that equals 38293998000000
+ 76587996 × 3000000 what gives us 229763988000000
+ 76587996 × 80000000 resulting in 6127039680000000

= 6398696765696028
