No problem, we've got 6394412 and 13450893 to multiply
6394412 × 13450893 = 13450893 × (6394412)
+ 13450893 × 2 giving us 26901786
+ 13450893 × 10 resulting in 134508930
+ 13450893 × 400 that results in 5380357200
+ 13450893 × 4000 giving us 53803572000
+ 13450893 × 90000 that results in 1210580370000
+ 13450893 × 300000 resulting in 4035267900000
+ 13450893 × 6000000 that is equal 80705358000000

= 86010551609916
