No problem, we've got 4720 and 8902 to multiply
4720 × 8902 = 8902 × (4720)
+ 8902 × 0 what gives us 0
+ 8902 × 20 resulting in 178040
+ 8902 × 700 resulting in 6231400
+ 8902 × 4000 that results in 35608000

= 42017440
