No problem, we've got 1561 and 5283 to multiply
1561 × 5283 = 5283 × (1561)
+ 5283 × 1 what gives us 5283
+ 5283 × 60 resulting in 316980
+ 5283 × 500 which equals 2641500
+ 5283 × 1000 that results in 5283000

= 8246763
