Alright, let's work through 28325869 times 42041793 step by step
28325869 × 42041793 = 42041793 × (28325869)
+ 42041793 × 9 which equals 378376137
+ 42041793 × 60 giving us 2522507580
+ 42041793 × 800 what gives us 33633434400
+ 42041793 × 5000 producing 210208965000
+ 42041793 × 20000 what gives us 840835860000
+ 42041793 × 300000 resulting in 12612537900000
+ 42041793 × 8000000 what gives us 336334344000000
+ 42041793 × 20000000 which equals 840835860000000

= 1190870321043117
