87357309 divided by 685 
We want to figure out the number of times 87357309 can be divided by 685.

Step 1:
685 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Take the next digit (7) from the dividend and append it to 8, then repeat: 87 / 685

On to step 2:
685 can be fit into 87 0 times, resulting in a remainder of 87.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 87 leaves us with 87.
Grab the next digit (3) from the dividend, add it to 87, then carry on: 873 / 685

On to step 3:
The number 685 fits into 873 1 times, leaving a remainder of 188.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 685 from 873 leaves us with 188.
Include the next digit (5) from the dividend after 188, then repeat: 1885 / 685

Going ahead to step 4:
If we divide 1885 by 685, we get 2 and a remainder of 515.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
If we subtract 1370 from 1885, we get 515.
Bring next digit (7) of the dividend behind the 515 and repeat the process: 5157 / 685

Let's proceed to step 5:
685 goes into 5157 7 times with a remainder of 362.
Record the quotient 7 as the next digit in the result. 
Result so far: 127.0
Deduct 4795 from 5157 and we're left with 362.
Grab the next digit (3) from the dividend, add it to 362, then carry on: 3623 / 685

Step 6:
If we divide 3623 by 685, we get 5 and a remainder of 198.
Put 5 as the next digit of the answer. 
Result so far: 1275.0
Subtracting 3425 from 3623 leaves us with 198.
Bring next digit (0) of the dividend behind the 198 and repeat the process: 1980 / 685

Moving on to step 7:
The number 685 fits into 1980 2 times, leaving a remainder of 610.
The next digit of our result is 2. 
Result so far: 12752.0
Subtract 1370 from 1980 to get 610.
Append the next digit (9) from the dividend to 610 and continue with: 6109 / 685

Step 8:
685 can be fit into 6109 8 times, resulting in a remainder of 629.
The next digit of our result is 8. 
Result so far: 127528.0
The remainder is 629 after subtracting 5480 from 6109.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6290, and continue the process.

Moving on to step 9:
The number 685 fits into 6290 9 times, leaving a remainder of 125.
Put 9 as the next digit of the answer. 
Result so far: 127528.9
Deduct 6165 from 6290 and we're left with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Going ahead to step 10:
685 goes into 1250 1 times with a remainder of 565.
The number 1 becomes the next digit in our result. 
Result so far: 127528.91
Subtracting 685 from 1250 leaves us with 565.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5650, and continue the process.

Going ahead to step 11:
685 can be fit into 5650 8 times, resulting in a remainder of 170.
Put 8 as the next digit of the answer. 
Result so far: 127528.918
The remainder is 170 after subtracting 5480 from 5650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Moving on to step 12:
The number 685 fits into 1700 2 times, leaving a remainder of 330.
The number 2 becomes the next digit in our result. 
Result so far: 127528.9182
The remainder is 330 after subtracting 1370 from 1700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Advancing to step 13:
685 can be fit into 3300 4 times, resulting in a remainder of 560.
The number 4 becomes the next digit in our result. 
Result so far: 127528.91824
If we subtract 2740 from 3300, we get 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Let's proceed to step 14:
685 goes into 5600 8 times with a remainder of 120.
The number 8 becomes the next digit in our result. 
Result so far: 127528.918248
Subtract 5480 from 5600 to get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Going ahead to step 15:
When dividing 1200 by 685, we get 1 with a remainder of 515.
Put 1 as the next digit of the answer. 
Result so far: 127528.9182481
Deduct 685 from 1200 and we're left with 515.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5150, and continue the process.

Moving on to step 16:
685 can be fit into 5150 7 times, resulting in a remainder of 355.
Write down 7 as next digit of the result. 
Result so far: 127528.91824817
Subtract 4795 from 5150 to get 355.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3550, and continue the process.

The final result is 127528.91824817 with a remainder of 3.55e-07.