No problem, we've got 1611 and 6900 to multiply
1611 × 6900 = 6900 × (1611)
+ 6900 × 1 yielding 6900
+ 6900 × 10 what gives us 69000
+ 6900 × 600 that equals 4140000
+ 6900 × 1000 that is equal 6900000

= 11115900
