Alright, let's work through 90941669 times 73800453 step by step
90941669 × 73800453 = 73800453 × (90941669)
+ 73800453 × 9 that is equal 664204077
+ 73800453 × 60 which equals 4428027180
+ 73800453 × 600 that is equal 44280271800
+ 73800453 × 1000 giving us 73800453000
+ 73800453 × 40000 that is equal 2952018120000
+ 73800453 × 900000 what gives us 66420407700000
+ 73800453 × 0000000 producing 0
+ 73800453 × 90000000 that results in 6642040770000000

= 6711536368776057
