Alright, let's work through 85277428 times 76719538 step by step
85277428 × 76719538 = 76719538 × (85277428)
+ 76719538 × 8 what gives us 613756304
+ 76719538 × 20 which equals 1534390760
+ 76719538 × 400 yielding 30687815200
+ 76719538 × 7000 giving us 537036766000
+ 76719538 × 70000 yielding 5370367660000
+ 76719538 × 200000 resulting in 15343907600000
+ 76719538 × 5000000 giving us 383597690000000
+ 76719538 × 80000000 giving us 6137563040000000

= 6542444877988264
