Alright, let's work through 20020501 times 38431035 step by step
20020501 × 38431035 = 38431035 × (20020501)
+ 38431035 × 1 what gives us 38431035
+ 38431035 × 00 resulting in 0
+ 38431035 × 500 what gives us 19215517500
+ 38431035 × 0000 giving us 0
+ 38431035 × 20000 that results in 768620700000
+ 38431035 × 000000 what gives us 0
+ 38431035 × 0000000 that equals 0
+ 38431035 × 20000000 that results in 768620700000000

= 769408574648535
