Let's calculate 42520678 x 6710407
42520678 × 6710407 = 6710407 × (42520678)
+ 6710407 × 8 giving us 53683256
+ 6710407 × 70 resulting in 469728490
+ 6710407 × 600 that equals 4026244200
+ 6710407 × 0000 that equals 0
+ 6710407 × 20000 which equals 134208140000
+ 6710407 × 500000 that equals 3355203500000
+ 6710407 × 2000000 which equals 13420814000000
+ 6710407 × 40000000 giving us 268416280000000

= 285331055295946
