3009 4 = 3000 4 + 9 * 4 = 12000 + 36 = 12036
4090 6 = 4000 6 + 90 * 6 = 24000 + 540 = 24540
30020 8 = 30000 8 + 20 * 8 = 240000 + 160 = 240160
70007 6 = 70000 6 + 7 * 6 = 420000 + 42 = 420042
3009 4 = 3000 4 + 9 * 4 = 12000 + 36 = 12036
4090 6 = 4000 6 + 90 * 6 = 24000 + 540 = 24540
30020 8 = 30000 8 + 20 * 8 = 240000 + 160 = 240160
70007 6 = 70000 6 + 7 * 6 = 420000 + 42 = 420042