73891 ÷ 7 = 10555 R6
We're going to perform division on 73891 with 7 as the divisor.

Step 1:
7 goes into 7 1 times with a remainder of 0.
Write down 1 as next digit of of the result. 
Result so far: 1
Subtract 7 from 7 to get 0.
Bring next digit (3) of the dividend behind the 0 and repeat the process: 3 / 7

Step 2:
7 goes into 3 0 times with a remainder of 3.
Write down 0 as next digit of of the result. 
Result so far: 10
Subtract 0 from 3 to get 3.
Bring next digit (8) of the dividend behind the 3 and repeat the process: 38 / 7

Step 3:
7 goes into 38 5 times with a remainder of 3.
Write down 5 as next digit of of the result. 
Result so far: 105
Subtract 35 from 38 to get 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 7

Step 4:
7 goes into 39 5 times with a remainder of 4.
Write down 5 as next digit of of the result. 
Result so far: 1055
Subtract 35 from 39 to get 4.
Bring next digit (1) of the dividend behind the 4 and repeat the process: 41 / 7

Step 5:
7 goes into 41 5 times with a remainder of 6.
Write down 5 as next digit of of the result. 
Result so far: 10555
Subtract 35 from 41 to get 6.

The final result is 10555 with a remainder of 6.