Alright, let's work through 84905641 times 23083979 step by step
84905641 × 23083979 = 23083979 × (84905641)
+ 23083979 × 1 what gives us 23083979
+ 23083979 × 40 giving us 923359160
+ 23083979 × 600 yielding 13850387400
+ 23083979 × 5000 that is equal 115419895000
+ 23083979 × 00000 producing 0
+ 23083979 × 900000 that equals 20775581100000
+ 23083979 × 4000000 which equals 92335916000000
+ 23083979 × 80000000 yielding 1846718320000000

= 1959960033825539
