Alright, let's work through 83642774 times 36510006 step by step
83642774 × 36510006 = 36510006 × (83642774)
+ 36510006 × 4 yielding 146040024
+ 36510006 × 70 what gives us 2555700420
+ 36510006 × 700 yielding 25557004200
+ 36510006 × 2000 giving us 73020012000
+ 36510006 × 40000 yielding 1460400240000
+ 36510006 × 600000 resulting in 21906003600000
+ 36510006 × 3000000 that results in 109530018000000
+ 36510006 × 80000000 that results in 2920800480000000

= 3053798180596644
