No problem, we've got 1220 and 5072 to multiply
1220 × 5072 = 5072 × (1220)
+ 5072 × 0 that is equal 0
+ 5072 × 20 giving us 101440
+ 5072 × 200 producing 1014400
+ 5072 × 1000 that equals 5072000

= 6187840
