No problem, we've got 4855 and 2133 to multiply
4855 × 2133 = 2133 × (4855)
+ 2133 × 5 what gives us 10665
+ 2133 × 50 resulting in 106650
+ 2133 × 800 that equals 1706400
+ 2133 × 4000 that equals 8532000

= 10355715
