Alright, let's work through 64373477 times 47827203 step by step
64373477 × 47827203 = 47827203 × (64373477)
+ 47827203 × 7 resulting in 334790421
+ 47827203 × 70 that equals 3347904210
+ 47827203 × 400 resulting in 19130881200
+ 47827203 × 3000 resulting in 143481609000
+ 47827203 × 70000 which equals 3347904210000
+ 47827203 × 300000 yielding 14348160900000
+ 47827203 × 4000000 producing 191308812000000
+ 47827203 × 60000000 that equals 2869632180000000

= 3078803352294831
