No problem, we've got 6741 and 1398 to multiply
6741 × 1398 = 1398 × (6741)
+ 1398 × 1 what gives us 1398
+ 1398 × 40 that is equal 55920
+ 1398 × 700 which equals 978600
+ 1398 × 6000 that equals 8388000

= 9423918
