OK, let's work through this together. We're starting with 869 and we're going to multiply it by 7, which means we add 869 to itself 7 times.
Step 1: 0 + 869 = 869
Step 2: 869 + 869 = 1738
Step 3: 1738 + 869 = 2607
Step 4: 2607 + 869 = 3476
Step 5: 3476 + 869 = 4345
Step 6: 4345 + 869 = 5214
Step 7: 5214 + 869 = 6083

So, 869*7 = 6083