Alright, let's work through 62975012 times 6312648 step by step
62975012 × 6312648 = 6312648 × (62975012)
+ 6312648 × 2 yielding 12625296
+ 6312648 × 10 what gives us 63126480
+ 6312648 × 000 what gives us 0
+ 6312648 × 5000 that equals 31563240000
+ 6312648 × 70000 yielding 441885360000
+ 6312648 × 900000 what gives us 5681383200000
+ 6312648 × 2000000 resulting in 12625296000000
+ 6312648 × 60000000 that equals 378758880000000

= 397539083551776
