Alright, let's work through 83129948 times 70359821 step by step
83129948 × 70359821 = 70359821 × (83129948)
+ 70359821 × 8 resulting in 562878568
+ 70359821 × 40 giving us 2814392840
+ 70359821 × 900 that equals 63323838900
+ 70359821 × 9000 which equals 633238389000
+ 70359821 × 20000 producing 1407196420000
+ 70359821 × 100000 that equals 7035982100000
+ 70359821 × 3000000 that is equal 211079463000000
+ 70359821 × 80000000 that is equal 5628785680000000

= 5849008261019308
