We're dividing 99409837 by 686 
We want to divide 99409837 by 686.

Advancing to step 1:
686 can be fit into 9 0 times, resulting in a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Include the next digit (9) from the dividend after 9, then repeat: 99 / 686

On to step 2:
When dividing 99 by 686, we get 0 with a remainder of 99.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 99 after subtracting 0 from 99.
Take the next digit (4) from the dividend and append it to 99, then repeat: 994 / 686

Going ahead to step 3:
If we divide 994 by 686, we get 1 and a remainder of 308.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 686 from 994 to get 308.
Bring next digit (0) of the dividend behind the 308 and repeat the process: 3080 / 686

Step 4:
When dividing 3080 by 686, we get 4 with a remainder of 336.
Use 4 as the next digit of our solution. 
Result so far: 14.0
Deduct 2744 from 3080 and we're left with 336.
Include the next digit (9) from the dividend after 336, then repeat: 3369 / 686

Let's proceed to step 5:
If we divide 3369 by 686, we get 4 and a remainder of 625.
Write down 4 as next digit of the result. 
Result so far: 144.0
If we take 2744 away from 3369, we end up with 625.
Fetch the next digit (8) from the dividend, attach it to 625 and continue: 6258 / 686

Let's proceed to step 6:
The number 686 fits into 6258 9 times, leaving a remainder of 84.
The number 9 becomes the next digit in our result. 
Result so far: 1449.0
Subtracting 6174 from 6258 leaves us with 84.
Grab the next digit (3) from the dividend, add it to 84, then carry on: 843 / 686

Advancing to step 7:
The number 686 fits into 843 1 times, leaving a remainder of 157.
The number 1 becomes the next digit in our result. 
Result so far: 14491.0
The remainder is 157 after subtracting 686 from 843.
Bring next digit (7) of the dividend behind the 157 and repeat the process: 1577 / 686

Moving on to step 8:
When dividing 1577 by 686, we get 2 with a remainder of 205.
Record the quotient 2 as the next digit in the result. 
Result so far: 144912.0
If we subtract 1372 from 1577, we get 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

On to step 9:
2050 divided by 686 is 2 with a remainder of 678.
Use 2 as the next digit of our solution. 
Result so far: 144912.2
Deduct 1372 from 2050 and we're left with 678.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6780, and continue the process.

Let's proceed to step 10:
686 goes into 6780 9 times with a remainder of 606.
Write down 9 as next digit of the result. 
Result so far: 144912.29
Deduct 6174 from 6780 and we're left with 606.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6060, and continue the process.

Moving on to step 11:
When dividing 6060 by 686, we get 8 with a remainder of 572.
Record the quotient 8 as the next digit in the result. 
Result so far: 144912.298
If we take 5488 away from 6060, we end up with 572.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5720, and continue the process.

Going ahead to step 12:
5720 divided by 686 is 8 with a remainder of 232.
The number 8 becomes the next digit in our result. 
Result so far: 144912.2988
Subtract 5488 from 5720 to get 232.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

Our division results in 144912.2988 with a remaining 0.00232.