No problem, we've got 73052449 and 72003315 to multiply
73052449 × 72003315 = 72003315 × (73052449)
+ 72003315 × 9 that results in 648029835
+ 72003315 × 40 producing 2880132600
+ 72003315 × 400 producing 28801326000
+ 72003315 × 2000 that results in 144006630000
+ 72003315 × 50000 what gives us 3600165750000
+ 72003315 × 000000 that results in 0
+ 72003315 × 3000000 what gives us 216009945000000
+ 72003315 × 70000000 producing 5040232050000000

= 5260018496868435
