We divide 87171 by 77
Our goal is to divide 87171 by 77.

Going ahead to step 1:
8 divided by 77 is 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 77

Step 2:
77 goes into 87 1 times with a remainder of 10.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 77 away from 87, we end up with 10.
Grab the next digit (1) from the dividend, add it to 10, then carry on: 101 / 77

Moving on to step 3:
When dividing 101 by 77, we get 1 with a remainder of 24.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
If we take 77 away from 101, we end up with 24.
Take the next digit (7) from the dividend and append it to 24, then repeat: 247 / 77

Step 4:
247 divided by 77 is 3 with a remainder of 16.
The number 3 becomes the next digit in our result. 
Result so far: 113.0
Subtract 231 from 247 to get 16.
Take the next digit (1) from the dividend and append it to 16, then repeat: 161 / 77

Moving on to step 5:
When dividing 161 by 77, we get 2 with a remainder of 7.
The next digit of our result is 2. 
Result so far: 1132.0
If we subtract 154 from 161, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 6:
If we divide 70 by 77, we get 0 and a remainder of 70.
The number 0 becomes the next digit in our result. 
Result so far: 1132.0
If we subtract 0 from 70, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 7:
If we divide 700 by 77, we get 9 and a remainder of 7.
Use 9 as the next digit of our solution. 
Result so far: 1132.09
Deduct 693 from 700 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 8:
When dividing 70 by 77, we get 0 with a remainder of 70.
Record the quotient 0 as the next digit in the result. 
Result so far: 1132.09
Subtracting 0 from 70 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 9:
If we divide 700 by 77, we get 9 and a remainder of 7.
Record the quotient 9 as the next digit in the result. 
Result so far: 1132.0909
If we take 693 away from 700, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 10:
If we divide 70 by 77, we get 0 and a remainder of 70.
Record the quotient 0 as the next digit in the result. 
Result so far: 1132.0909
If we take 0 away from 70, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 11:
77 can be fit into 700 9 times, resulting in a remainder of 7.
The next digit of our result is 9. 
Result so far: 1132.090909
Subtract 693 from 700 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 12:
77 can be fit into 70 0 times, resulting in a remainder of 70.
Put 0 as the next digit of the answer. 
Result so far: 1132.090909
Subtracting 0 from 70 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 13:
77 goes into 700 9 times with a remainder of 7.
Record the quotient 9 as the next digit in the result. 
Result so far: 1132.09090909
Subtract 693 from 700 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Our division results in 1132.09090909 with a remaining 7e-09.