OK, let's crack this. We're given 859 and our task is to multiply it by 35. Essentially, we'll be adding 859 to itself 35 times.
Step 1: 0 + 859 = 859
Step 2: 859 + 859 = 1718
Step 3: 1718 + 859 = 2577
Step 4: 2577 + 859 = 3436
Step 5: 3436 + 859 = 4295
Step 6: 4295 + 859 = 5154
Step 7: 5154 + 859 = 6013
Step 8: 6013 + 859 = 6872
Step 9: 6872 + 859 = 7731
Step 10: 7731 + 859 = 8590
Step 11: 8590 + 859 = 9449
Step 12: 9449 + 859 = 10308
Step 13: 10308 + 859 = 11167
Step 14: 11167 + 859 = 12026
Step 15: 12026 + 859 = 12885
Step 16: 12885 + 859 = 13744
Step 17: 13744 + 859 = 14603
Step 18: 14603 + 859 = 15462
Step 19: 15462 + 859 = 16321
Step 20: 16321 + 859 = 17180
Step 21: 17180 + 859 = 18039
Step 22: 18039 + 859 = 18898
Step 23: 18898 + 859 = 19757
Step 24: 19757 + 859 = 20616
Step 25: 20616 + 859 = 21475
Step 26: 21475 + 859 = 22334
Step 27: 22334 + 859 = 23193
Step 28: 23193 + 859 = 24052
Step 29: 24052 + 859 = 24911
Step 30: 24911 + 859 = 25770
Step 31: 25770 + 859 = 26629
Step 32: 26629 + 859 = 27488
Step 33: 27488 + 859 = 28347
Step 34: 28347 + 859 = 29206
Step 35: 29206 + 859 = 30065

So, 859*35 = 30065