No problem, we've got 6438 and 4899 to multiply
6438 × 4899 = 4899 × (6438)
+ 4899 × 8 what gives us 39192
+ 4899 × 30 which equals 146970
+ 4899 × 400 what gives us 1959600
+ 4899 × 6000 that results in 29394000

= 31539762
