Alright, let's work through 42590741 times 13573255 step by step
42590741 × 13573255 = 13573255 × (42590741)
+ 13573255 × 1 that results in 13573255
+ 13573255 × 40 what gives us 542930200
+ 13573255 × 700 which equals 9501278500
+ 13573255 × 0000 yielding 0
+ 13573255 × 90000 giving us 1221592950000
+ 13573255 × 500000 that equals 6786627500000
+ 13573255 × 2000000 yielding 27146510000000
+ 13573255 × 40000000 that is equal 542930200000000

= 578094988231955
