8719121 ÷ 685 
We want to figure out the number of times 8719121 can be divided by 685.

Step 1:
When dividing 8 by 685, we get 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 685

Moving on to step 2:
685 goes into 87 0 times with a remainder of 87.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 87 to get 87.
Fetch the next digit (1) from the dividend, attach it to 87 and continue: 871 / 685

Step 3:
685 goes into 871 1 times with a remainder of 186.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 685 from 871 to get 186.
Include the next digit (9) from the dividend after 186, then repeat: 1869 / 685

On to step 4:
1869 divided by 685 is 2 with a remainder of 499.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
If we subtract 1370 from 1869, we get 499.
Fetch the next digit (1) from the dividend, attach it to 499 and continue: 4991 / 685

Let's proceed to step 5:
The number 685 fits into 4991 7 times, leaving a remainder of 196.
Use 7 as the next digit of our solution. 
Result so far: 127.0
Subtract 4795 from 4991 to get 196.
Fetch the next digit (2) from the dividend, attach it to 196 and continue: 1962 / 685

Let's proceed to step 6:
When dividing 1962 by 685, we get 2 with a remainder of 592.
The number 2 becomes the next digit in our result. 
Result so far: 1272.0
Subtracting 1370 from 1962 leaves us with 592.
Include the next digit (1) from the dividend after 592, then repeat: 5921 / 685

Moving on to step 7:
5921 divided by 685 is 8 with a remainder of 441.
Write down 8 as next digit of the result. 
Result so far: 12728.0
Subtract 5480 from 5921 to get 441.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4410, and continue the process.

Advancing to step 8:
If we divide 4410 by 685, we get 6 and a remainder of 300.
Write down 6 as next digit of the result. 
Result so far: 12728.6
The remainder is 300 after subtracting 4110 from 4410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

On to step 9:
The number 685 fits into 3000 4 times, leaving a remainder of 260.
Use 4 as the next digit of our solution. 
Result so far: 12728.64
Subtract 2740 from 3000 to get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

On to step 10:
685 can be fit into 2600 3 times, resulting in a remainder of 545.
Record the quotient 3 as the next digit in the result. 
Result so far: 12728.643
The remainder is 545 after subtracting 2055 from 2600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5450, and continue the process.

Let's proceed to step 11:
If we divide 5450 by 685, we get 7 and a remainder of 655.
The next digit of our result is 7. 
Result so far: 12728.6437
The remainder is 655 after subtracting 4795 from 5450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6550, and continue the process.

Step 12:
The number 685 fits into 6550 9 times, leaving a remainder of 385.
Record the quotient 9 as the next digit in the result. 
Result so far: 12728.64379
Subtracting 6165 from 6550 leaves us with 385.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3850, and continue the process.

Step 13:
685 goes into 3850 5 times with a remainder of 425.
The number 5 becomes the next digit in our result. 
Result so far: 12728.643795
If we subtract 3425 from 3850, we get 425.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4250, and continue the process.

Step 14:
685 goes into 4250 6 times with a remainder of 140.
Write down 6 as next digit of the result. 
Result so far: 12728.6437956
Deduct 4110 from 4250 and we're left with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Let's proceed to step 15:
The number 685 fits into 1400 2 times, leaving a remainder of 30.
Use 2 as the next digit of our solution. 
Result so far: 12728.64379562
If we take 1370 away from 1400, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The final result is 12728.64379562 with a remainder of 3e-08.