80140 ÷ 7 = 11448 R4
We're going to perform division on 80140 with 7 as the divisor.

Step 1:
7 goes into 8 1 times with a remainder of 1.
Write down 1 as next digit of of the result. 
Result so far: 1
Subtract 7 from 8 to get 1.
Bring next digit (0) of the dividend behind the 1 and repeat the process: 10 / 7

Step 2:
7 goes into 10 1 times with a remainder of 3.
Write down 1 as next digit of of the result. 
Result so far: 11
Subtract 7 from 10 to get 3.
Bring next digit (1) of the dividend behind the 3 and repeat the process: 31 / 7

Step 3:
7 goes into 31 4 times with a remainder of 3.
Write down 4 as next digit of of the result. 
Result so far: 114
Subtract 28 from 31 to get 3.
Bring next digit (4) of the dividend behind the 3 and repeat the process: 34 / 7

Step 4:
7 goes into 34 4 times with a remainder of 6.
Write down 4 as next digit of of the result. 
Result so far: 1144
Subtract 28 from 34 to get 6.
Bring next digit (0) of the dividend behind the 6 and repeat the process: 60 / 7

Step 5:
7 goes into 60 8 times with a remainder of 4.
Write down 8 as next digit of of the result. 
Result so far: 11448
Subtract 56 from 60 to get 4.

The final result is 11448 with a remainder of 4.