User:M'encarta/sandbox/3

Long Multiplication

 * 1) Multiply the ones: 415 x 7 = 35
 * 2) Multiply the twos: 415 x 7 = 35 + 70 = 105
 * 3) Multiply the hundreds: 415 x 7 = 35 + 70 + 2800 = 2905