No problem, we've got 4205 and 1052 to multiply
4205 × 1052 = 1052 × (4205)
+ 1052 × 5 what gives us 5260
+ 1052 × 00 that is equal 0
+ 1052 × 200 that is equal 210400
+ 1052 × 4000 resulting in 4208000

= 4423660
