No problem, we've got 6729 and 7980 to multiply
6729 × 7980 = 7980 × (6729)
+ 7980 × 9 that results in 71820
+ 7980 × 20 that is equal 159600
+ 7980 × 700 that results in 5586000
+ 7980 × 6000 giving us 47880000

= 53697420
