No problem, we've got 1187 and 5320 to multiply
1187 × 5320 = 5320 × (1187)
+ 5320 × 7 what gives us 37240
+ 5320 × 80 that results in 425600
+ 5320 × 100 which equals 532000
+ 5320 × 1000 giving us 5320000

= 6314840
