Let's roll up our sleeves and solve this. We have 422 and we're going to multiply it by 10, essentially adding 422 to itself 10 times.
Step 1: 0 + 422 = 422
Step 2: 422 + 422 = 844
Step 3: 844 + 422 = 1266
Step 4: 1266 + 422 = 1688
Step 5: 1688 + 422 = 2110
Step 6: 2110 + 422 = 2532
Step 7: 2532 + 422 = 2954
Step 8: 2954 + 422 = 3376
Step 9: 3376 + 422 = 3798
Step 10: 3798 + 422 = 4220

So, 422*10 = 4220