No problem, we've got 87321872 and 67762634 to multiply
87321872 × 67762634 = 67762634 × (87321872)
+ 67762634 × 2 resulting in 135525268
+ 67762634 × 70 what gives us 4743384380
+ 67762634 × 800 giving us 54210107200
+ 67762634 × 1000 what gives us 67762634000
+ 67762634 × 20000 resulting in 1355252680000
+ 67762634 × 300000 that results in 20328790200000
+ 67762634 × 7000000 which equals 474338438000000
+ 67762634 × 80000000 producing 5421010720000000

= 5917160052530848
