5×1000000 = 5000000
4×100000 = 400000
3×100000 = 300000
2×1000 = 2000
7×100 = 700
1×10 = 10
2×1 = 2
Now let's sum:
5000000 + 400000 + 300000 + 2000 + 700 + 10 + 2
5400000 + 300000 + 2000 + 70 + 10 + 2
5700000 + 2000 + 70 + 10 + 2
5702000 + 70 + 10 + 2
5702070 + 10 + 2
5702080 + 2
5702082