Alright, let's work through 28279078 times 17265947 step by step
28279078 × 17265947 = 17265947 × (28279078)
+ 17265947 × 8 what gives us 138127576
+ 17265947 × 70 that is equal 1208616290
+ 17265947 × 000 giving us 0
+ 17265947 × 9000 that is equal 155393523000
+ 17265947 × 70000 which equals 1208616290000
+ 17265947 × 200000 producing 3453189400000
+ 17265947 × 8000000 which equals 138127576000000
+ 17265947 × 20000000 that equals 345318940000000

= 488265061956866
