Let's divide 57984415 by 686
Our goal is to divide 57984415 by 686.

Going ahead to step 1:
686 goes into 5 0 times with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Append the next digit (7) from the dividend to 5 and continue with: 57 / 686

On to step 2:
When dividing 57 by 686, we get 0 with a remainder of 57.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 57 and we're left with 57.
Take the next digit (9) from the dividend and append it to 57, then repeat: 579 / 686

Advancing to step 3:
579 divided by 686 is 0 with a remainder of 579.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 579, we end up with 579.
Fetch the next digit (8) from the dividend, attach it to 579 and continue: 5798 / 686

Moving on to step 4:
5798 divided by 686 is 8 with a remainder of 310.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
The remainder is 310 after subtracting 5488 from 5798.
Grab the next digit (4) from the dividend, add it to 310, then carry on: 3104 / 686

Step 5:
The number 686 fits into 3104 4 times, leaving a remainder of 360.
The number 4 becomes the next digit in our result. 
Result so far: 84.0
Subtracting 2744 from 3104 leaves us with 360.
Take the next digit (4) from the dividend and append it to 360, then repeat: 3604 / 686

Step 6:
If we divide 3604 by 686, we get 5 and a remainder of 174.
Record the quotient 5 as the next digit in the result. 
Result so far: 845.0
Deduct 3430 from 3604 and we're left with 174.
Append the next digit (1) from the dividend to 174 and continue with: 1741 / 686

Going ahead to step 7:
The number 686 fits into 1741 2 times, leaving a remainder of 369.
The next digit of our result is 2. 
Result so far: 8452.0
Deduct 1372 from 1741 and we're left with 369.
Bring next digit (5) of the dividend behind the 369 and repeat the process: 3695 / 686

Going ahead to step 8:
If we divide 3695 by 686, we get 5 and a remainder of 265.
Use 5 as the next digit of our solution. 
Result so far: 84525.0
If we subtract 3430 from 3695, we get 265.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

Let's proceed to step 9:
2650 divided by 686 is 3 with a remainder of 592.
The next digit of our result is 3. 
Result so far: 84525.3
If we subtract 2058 from 2650, we get 592.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5920, and continue the process.

On to step 10:
5920 divided by 686 is 8 with a remainder of 432.
Use 8 as the next digit of our solution. 
Result so far: 84525.38
Subtracting 5488 from 5920 leaves us with 432.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4320, and continue the process.

On to step 11:
If we divide 4320 by 686, we get 6 and a remainder of 204.
Record the quotient 6 as the next digit in the result. 
Result so far: 84525.386
If we subtract 4116 from 4320, we get 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Moving on to step 12:
When dividing 2040 by 686, we get 2 with a remainder of 668.
Use 2 as the next digit of our solution. 
Result so far: 84525.3862
The remainder is 668 after subtracting 1372 from 2040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6680, and continue the process.

Moving on to step 13:
The number 686 fits into 6680 9 times, leaving a remainder of 506.
Use 9 as the next digit of our solution. 
Result so far: 84525.38629
If we subtract 6174 from 6680, we get 506.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5060, and continue the process.

Step 14:
686 can be fit into 5060 7 times, resulting in a remainder of 258.
The number 7 becomes the next digit in our result. 
Result so far: 84525.386297
The remainder is 258 after subtracting 4802 from 5060.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2580, and continue the process.

Going ahead to step 15:
686 can be fit into 2580 3 times, resulting in a remainder of 522.
The next digit of our result is 3. 
Result so far: 84525.3862973
Deduct 2058 from 2580 and we're left with 522.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5220, and continue the process.

Moving on to step 16:
686 goes into 5220 7 times with a remainder of 418.
Record the quotient 7 as the next digit in the result. 
Result so far: 84525.38629737
If we subtract 4802 from 5220, we get 418.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4180, and continue the process.

The final outcome is 84525.38629737, with a leftover of 4.18e-07.