No problem, we've got 1798 and 3135 to multiply
1798 × 3135 = 3135 × (1798)
+ 3135 × 8 what gives us 25080
+ 3135 × 90 which equals 282150
+ 3135 × 700 yielding 2194500
+ 3135 × 1000 resulting in 3135000

= 5636730
