Alright, let's work through 28457347 times 37680346 step by step
28457347 × 37680346 = 37680346 × (28457347)
+ 37680346 × 7 that equals 263762422
+ 37680346 × 40 that results in 1507213840
+ 37680346 × 300 that is equal 11304103800
+ 37680346 × 7000 which equals 263762422000
+ 37680346 × 50000 which equals 1884017300000
+ 37680346 × 400000 what gives us 15072138400000
+ 37680346 × 8000000 yielding 301442768000000
+ 37680346 × 20000000 that results in 753606920000000

= 1072282681202062
