Alright, let's work through 53788378 times 54688130 step by step
53788378 × 54688130 = 54688130 × (53788378)
+ 54688130 × 8 what gives us 437505040
+ 54688130 × 70 that equals 3828169100
+ 54688130 × 300 what gives us 16406439000
+ 54688130 × 8000 resulting in 437505040000
+ 54688130 × 80000 that is equal 4375050400000
+ 54688130 × 700000 that is equal 38281691000000
+ 54688130 × 3000000 which equals 164064390000000
+ 54688130 × 50000000 giving us 2734406500000000

= 2941585808553140
