Let's solve this step by step:
6 * 8 = 48200 : 8 = 2548 - 25 = 23
300 : 4 = 7575 : 25 = 3679 : 7 = 9797 + 3 = 100
868 : 7 = 124124 + 92 = 216216 : 3 = 7272 - 156 = -84
53 * 4 = 2121000 : 5 = 200212 - 200 = 12432 : 6 = 7272 : 12 = 6
Therefore, the final answer is 6.
Let's solve this step by step:
6 * 8 = 48
200 : 8 = 25
48 - 25 = 23
300 : 4 = 75
75 : 25 = 3
679 : 7 = 97
97 + 3 = 100
868 : 7 = 124
124 + 92 = 216
216 : 3 = 72
72 - 156 = -84
53 * 4 = 212
1000 : 5 = 200
212 - 200 = 12
432 : 6 = 72
72 : 12 = 6
Therefore, the final answer is 6.