Alright, let's work through 66253830 times 80011100 step by step
66253830 × 80011100 = 80011100 × (66253830)
+ 80011100 × 0 giving us 0
+ 80011100 × 30 what gives us 2400333000
+ 80011100 × 800 yielding 64008880000
+ 80011100 × 3000 that results in 240033300000
+ 80011100 × 50000 yielding 4000555000000
+ 80011100 × 200000 what gives us 16002220000000
+ 80011100 × 6000000 resulting in 480066600000000
+ 80011100 × 60000000 that results in 4800666000000000

= 5301041817513000
