Alright, let's work through 87661319 times 57748530 step by step
87661319 × 57748530 = 57748530 × (87661319)
+ 57748530 × 9 what gives us 519736770
+ 57748530 × 10 producing 577485300
+ 57748530 × 300 which equals 17324559000
+ 57748530 × 1000 that is equal 57748530000
+ 57748530 × 60000 which equals 3464911800000
+ 57748530 × 600000 giving us 34649118000000
+ 57748530 × 7000000 that equals 404239710000000
+ 57748530 × 80000000 what gives us 4619882400000000

= 5062312310111070
