Alright, let's work through 3435 times 3561 step by step
3435 × 3561 = 3561 × (3435)
+ 3561 × 5 what gives us 17805
+ 3561 × 30 that is equal 106830
+ 3561 × 400 which equals 1424400
+ 3561 × 3000 giving us 10683000

= 12232035
