We look at the division of 78553709 by 871 
We want to figure out the number of times 78553709 can be divided by 871.

Let's proceed to step 1:
When dividing 7 by 871, we get 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 871

Moving on to step 2:
871 goes into 78 0 times with a remainder of 78.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 78 to get 78.
Include the next digit (5) from the dividend after 78, then repeat: 785 / 871

Step 3:
When dividing 785 by 871, we get 0 with a remainder of 785.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 785, we end up with 785.
Fetch the next digit (5) from the dividend, attach it to 785 and continue: 7855 / 871

Step 4:
871 can be fit into 7855 9 times, resulting in a remainder of 16.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we subtract 7839 from 7855, we get 16.
Bring next digit (3) of the dividend behind the 16 and repeat the process: 163 / 871

Let's proceed to step 5:
If we divide 163 by 871, we get 0 and a remainder of 163.
Write down 0 as next digit of the result. 
Result so far: 90.0
If we take 0 away from 163, we end up with 163.
Bring next digit (7) of the dividend behind the 163 and repeat the process: 1637 / 871

Let's proceed to step 6:
When dividing 1637 by 871, we get 1 with a remainder of 766.
The number 1 becomes the next digit in our result. 
Result so far: 901.0
Subtract 871 from 1637 to get 766.
Take the next digit (0) from the dividend and append it to 766, then repeat: 7660 / 871

Advancing to step 7:
871 can be fit into 7660 8 times, resulting in a remainder of 692.
Write down 8 as next digit of the result. 
Result so far: 9018.0
Deduct 6968 from 7660 and we're left with 692.
Bring next digit (9) of the dividend behind the 692 and repeat the process: 6929 / 871

Let's proceed to step 8:
The number 871 fits into 6929 7 times, leaving a remainder of 832.
Put 7 as the next digit of the answer. 
Result so far: 90187.0
The remainder is 832 after subtracting 6097 from 6929.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8320, and continue the process.

Going ahead to step 9:
871 goes into 8320 9 times with a remainder of 481.
The next digit of our result is 9. 
Result so far: 90187.9
Subtract 7839 from 8320 to get 481.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4810, and continue the process.

Moving on to step 10:
The number 871 fits into 4810 5 times, leaving a remainder of 455.
The number 5 becomes the next digit in our result. 
Result so far: 90187.95
Subtract 4355 from 4810 to get 455.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4550, and continue the process.

Advancing to step 11:
When dividing 4550 by 871, we get 5 with a remainder of 195.
Record the quotient 5 as the next digit in the result. 
Result so far: 90187.955
If we subtract 4355 from 4550, we get 195.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1950, and continue the process.

Our division results in 90187.955 with a remaining 0.0195.