Alright, let's work through 75238774 times 76322257 step by step
75238774 × 76322257 = 76322257 × (75238774)
+ 76322257 × 4 giving us 305289028
+ 76322257 × 70 giving us 5342557990
+ 76322257 × 700 giving us 53425579900
+ 76322257 × 8000 that equals 610578056000
+ 76322257 × 30000 that is equal 2289667710000
+ 76322257 × 200000 what gives us 15264451400000
+ 76322257 × 5000000 giving us 381611285000000
+ 76322257 × 70000000 giving us 5342557990000000

= 5742393045592918
