Alright, let's work through 28004199 times 40141128 step by step
28004199 × 40141128 = 40141128 × (28004199)
+ 40141128 × 9 giving us 361270152
+ 40141128 × 90 that equals 3612701520
+ 40141128 × 100 giving us 4014112800
+ 40141128 × 4000 yielding 160564512000
+ 40141128 × 00000 that is equal 0
+ 40141128 × 000000 giving us 0
+ 40141128 × 8000000 that equals 321129024000000
+ 40141128 × 20000000 giving us 802822560000000

= 1124120136596472
