OK, let's work through this together. We're starting with 544 and we're going to multiply it by 35, which means we add 544 to itself 35 times.
Step 1: 0 + 544 = 544
Step 2: 544 + 544 = 1088
Step 3: 1088 + 544 = 1632
Step 4: 1632 + 544 = 2176
Step 5: 2176 + 544 = 2720
Step 6: 2720 + 544 = 3264
Step 7: 3264 + 544 = 3808
Step 8: 3808 + 544 = 4352
Step 9: 4352 + 544 = 4896
Step 10: 4896 + 544 = 5440
Step 11: 5440 + 544 = 5984
Step 12: 5984 + 544 = 6528
Step 13: 6528 + 544 = 7072
Step 14: 7072 + 544 = 7616
Step 15: 7616 + 544 = 8160
Step 16: 8160 + 544 = 8704
Step 17: 8704 + 544 = 9248
Step 18: 9248 + 544 = 9792
Step 19: 9792 + 544 = 10336
Step 20: 10336 + 544 = 10880
Step 21: 10880 + 544 = 11424
Step 22: 11424 + 544 = 11968
Step 23: 11968 + 544 = 12512
Step 24: 12512 + 544 = 13056
Step 25: 13056 + 544 = 13600
Step 26: 13600 + 544 = 14144
Step 27: 14144 + 544 = 14688
Step 28: 14688 + 544 = 15232
Step 29: 15232 + 544 = 15776
Step 30: 15776 + 544 = 16320
Step 31: 16320 + 544 = 16864
Step 32: 16864 + 544 = 17408
Step 33: 17408 + 544 = 17952
Step 34: 17952 + 544 = 18496
Step 35: 18496 + 544 = 19040

So, 544*35 = 19040