87186 ÷ 5 = 17437 R1
Let's divide 87186 by 5.

Step 1:
5 goes into 8 1 times with a remainder of 3.
Write down 1 as next digit of of the result. 
Result so far: 1
Subtract 5 from 8 to get 3.
Bring next digit (7) of the dividend behind the 3 and repeat the process: 37 / 5

Step 2:
5 goes into 37 7 times with a remainder of 2.
Write down 7 as next digit of of the result. 
Result so far: 17
Subtract 35 from 37 to get 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 5

Step 3:
5 goes into 21 4 times with a remainder of 1.
Write down 4 as next digit of of the result. 
Result so far: 174
Subtract 20 from 21 to get 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 5

Step 4:
5 goes into 18 3 times with a remainder of 3.
Write down 3 as next digit of of the result. 
Result so far: 1743
Subtract 15 from 18 to get 3.
Bring next digit (6) of the dividend behind the 3 and repeat the process: 36 / 5

Step 5:
5 goes into 36 7 times with a remainder of 1.
Write down 7 as next digit of of the result. 
Result so far: 17437
Subtract 35 from 36 to get 1.

The final result is 17437 with a remainder of 1.