Alright, let's work through 89245520 times 53374977 step by step
89245520 × 53374977 = 53374977 × (89245520)
+ 53374977 × 0 giving us 0
+ 53374977 × 20 yielding 1067499540
+ 53374977 × 500 resulting in 26687488500
+ 53374977 × 5000 yielding 266874885000
+ 53374977 × 40000 that results in 2134999080000
+ 53374977 × 200000 that is equal 10674995400000
+ 53374977 × 9000000 which equals 480374793000000
+ 53374977 × 80000000 that is equal 4269998160000000

= 4763477577353040
