We divide 40088919 by 686
We want to divide 40088919 by 686.

Step 1:
The number 686 fits into 4 0 times, leaving a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 686

Let's proceed to step 2:
686 goes into 40 0 times with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 40 leaves us with 40.
Bring next digit (0) of the dividend behind the 40 and repeat the process: 400 / 686

Let's proceed to step 3:
The number 686 fits into 400 0 times, leaving a remainder of 400.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 400 and we're left with 400.
Take the next digit (8) from the dividend and append it to 400, then repeat: 4008 / 686

Going ahead to step 4:
If we divide 4008 by 686, we get 5 and a remainder of 578.
Write down 5 as next digit of the result. 
Result so far: 5.0
If we take 3430 away from 4008, we end up with 578.
Append the next digit (8) from the dividend to 578 and continue with: 5788 / 686

Moving on to step 5:
When dividing 5788 by 686, we get 8 with a remainder of 300.
The next digit of our result is 8. 
Result so far: 58.0
If we take 5488 away from 5788, we end up with 300.
Take the next digit (9) from the dividend and append it to 300, then repeat: 3009 / 686

Let's proceed to step 6:
When dividing 3009 by 686, we get 4 with a remainder of 265.
Write down 4 as next digit of the result. 
Result so far: 584.0
Subtract 2744 from 3009 to get 265.
Take the next digit (1) from the dividend and append it to 265, then repeat: 2651 / 686

Moving on to step 7:
686 can be fit into 2651 3 times, resulting in a remainder of 593.
Record the quotient 3 as the next digit in the result. 
Result so far: 5843.0
If we subtract 2058 from 2651, we get 593.
Fetch the next digit (9) from the dividend, attach it to 593 and continue: 5939 / 686

Step 8:
When dividing 5939 by 686, we get 8 with a remainder of 451.
Record the quotient 8 as the next digit in the result. 
Result so far: 58438.0
Subtract 5488 from 5939 to get 451.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4510, and continue the process.

Going ahead to step 9:
4510 divided by 686 is 6 with a remainder of 394.
Record the quotient 6 as the next digit in the result. 
Result so far: 58438.6
Subtracting 4116 from 4510 leaves us with 394.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

On to step 10:
686 can be fit into 3940 5 times, resulting in a remainder of 510.
Put 5 as the next digit of the answer. 
Result so far: 58438.65
Subtracting 3430 from 3940 leaves us with 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Going ahead to step 11:
The number 686 fits into 5100 7 times, leaving a remainder of 298.
Record the quotient 7 as the next digit in the result. 
Result so far: 58438.657
Subtract 4802 from 5100 to get 298.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2980, and continue the process.

Going ahead to step 12:
686 can be fit into 2980 4 times, resulting in a remainder of 236.
The next digit of our result is 4. 
Result so far: 58438.6574
Subtract 2744 from 2980 to get 236.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2360, and continue the process.

On to step 13:
686 can be fit into 2360 3 times, resulting in a remainder of 302.
The number 3 becomes the next digit in our result. 
Result so far: 58438.65743
The remainder is 302 after subtracting 2058 from 2360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3020, and continue the process.

Going ahead to step 14:
3020 divided by 686 is 4 with a remainder of 276.
Write down 4 as next digit of the result. 
Result so far: 58438.657434
The remainder is 276 after subtracting 2744 from 3020.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2760, and continue the process.

Going ahead to step 15:
686 goes into 2760 4 times with a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 58438.6574344
Subtracting 2744 from 2760 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

After the division, we end up with 58438.6574344 and a remainder of 1.6e-07.