OK, let's crack this. We're given 213 and our task is to multiply it by 49. Essentially, we'll be adding 213 to itself 49 times.
Step 1: 0 + 213 = 213
Step 2: 213 + 213 = 426
Step 3: 426 + 213 = 639
Step 4: 639 + 213 = 852
Step 5: 852 + 213 = 1065
Step 6: 1065 + 213 = 1278
Step 7: 1278 + 213 = 1491
Step 8: 1491 + 213 = 1704
Step 9: 1704 + 213 = 1917
Step 10: 1917 + 213 = 2130
Step 11: 2130 + 213 = 2343
Step 12: 2343 + 213 = 2556
Step 13: 2556 + 213 = 2769
Step 14: 2769 + 213 = 2982
Step 15: 2982 + 213 = 3195
Step 16: 3195 + 213 = 3408
Step 17: 3408 + 213 = 3621
Step 18: 3621 + 213 = 3834
Step 19: 3834 + 213 = 4047
Step 20: 4047 + 213 = 4260
Step 21: 4260 + 213 = 4473
Step 22: 4473 + 213 = 4686
Step 23: 4686 + 213 = 4899
Step 24: 4899 + 213 = 5112
Step 25: 5112 + 213 = 5325
Step 26: 5325 + 213 = 5538
Step 27: 5538 + 213 = 5751
Step 28: 5751 + 213 = 5964
Step 29: 5964 + 213 = 6177
Step 30: 6177 + 213 = 6390
Step 31: 6390 + 213 = 6603
Step 32: 6603 + 213 = 6816
Step 33: 6816 + 213 = 7029
Step 34: 7029 + 213 = 7242
Step 35: 7242 + 213 = 7455
Step 36: 7455 + 213 = 7668
Step 37: 7668 + 213 = 7881
Step 38: 7881 + 213 = 8094
Step 39: 8094 + 213 = 8307
Step 40: 8307 + 213 = 8520
Step 41: 8520 + 213 = 8733
Step 42: 8733 + 213 = 8946
Step 43: 8946 + 213 = 9159
Step 44: 9159 + 213 = 9372
Step 45: 9372 + 213 = 9585
Step 46: 9585 + 213 = 9798
Step 47: 9798 + 213 = 10011
Step 48: 10011 + 213 = 10224
Step 49: 10224 + 213 = 10437

So, 213*49 = 10437