No problem, we've got 4200 and 4856 to multiply
4200 × 4856 = 4856 × (4200)
+ 4856 × 0 which equals 0
+ 4856 × 00 which equals 0
+ 4856 × 200 that results in 971200
+ 4856 × 4000 that results in 19424000

= 20395200
