Alright, let's work through 64086048 times 42896923 step by step
64086048 × 42896923 = 42896923 × (64086048)
+ 42896923 × 8 resulting in 343175384
+ 42896923 × 40 which equals 1715876920
+ 42896923 × 000 that equals 0
+ 42896923 × 6000 giving us 257381538000
+ 42896923 × 80000 that is equal 3431753840000
+ 42896923 × 000000 that is equal 0
+ 42896923 × 4000000 giving us 171587692000000
+ 42896923 × 60000000 that equals 2573815380000000

= 2749094266430304
