No problem, we've got 1843 and 4545 to multiply
1843 × 4545 = 4545 × (1843)
+ 4545 × 3 what gives us 13635
+ 4545 × 40 which equals 181800
+ 4545 × 800 resulting in 3636000
+ 4545 × 1000 giving us 4545000

= 8376435
