Alright, let's work through 79965780 times 45783590 step by step
79965780 × 45783590 = 45783590 × (79965780)
+ 45783590 × 0 that equals 0
+ 45783590 × 80 that equals 3662687200
+ 45783590 × 700 giving us 32048513000
+ 45783590 × 5000 which equals 228917950000
+ 45783590 × 60000 what gives us 2747015400000
+ 45783590 × 900000 what gives us 41205231000000
+ 45783590 × 9000000 giving us 412052310000000
+ 45783590 × 70000000 resulting in 3204851300000000

= 3661120485550200
