We look at the division of 58257394 by 686 
Let's see how many times 686 fits into 58257394.

Let's proceed to step 1:
When dividing 5 by 686, we get 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Fetch the next digit (8) from the dividend, attach it to 5 and continue: 58 / 686

Moving on to step 2:
686 goes into 58 0 times with a remainder of 58.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 58 leaves us with 58.
Grab the next digit (2) from the dividend, add it to 58, then carry on: 582 / 686

Going ahead to step 3:
582 divided by 686 is 0 with a remainder of 582.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 582 to get 582.
Append the next digit (5) from the dividend to 582 and continue with: 5825 / 686

On to step 4:
686 can be fit into 5825 8 times, resulting in a remainder of 337.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Deduct 5488 from 5825 and we're left with 337.
Grab the next digit (7) from the dividend, add it to 337, then carry on: 3377 / 686

Let's proceed to step 5:
3377 divided by 686 is 4 with a remainder of 633.
Record the quotient 4 as the next digit in the result. 
Result so far: 84.0
Subtract 2744 from 3377 to get 633.
Grab the next digit (3) from the dividend, add it to 633, then carry on: 6333 / 686

Advancing to step 6:
When dividing 6333 by 686, we get 9 with a remainder of 159.
The next digit of our result is 9. 
Result so far: 849.0
The remainder is 159 after subtracting 6174 from 6333.
Append the next digit (9) from the dividend to 159 and continue with: 1599 / 686

On to step 7:
When dividing 1599 by 686, we get 2 with a remainder of 227.
The number 2 becomes the next digit in our result. 
Result so far: 8492.0
If we take 1372 away from 1599, we end up with 227.
Grab the next digit (4) from the dividend, add it to 227, then carry on: 2274 / 686

On to step 8:
The number 686 fits into 2274 3 times, leaving a remainder of 216.
Put 3 as the next digit of the answer. 
Result so far: 84923.0
Subtract 2058 from 2274 to get 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

On to step 9:
When dividing 2160 by 686, we get 3 with a remainder of 102.
The next digit of our result is 3. 
Result so far: 84923.3
Subtracting 2058 from 2160 leaves us with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Advancing to step 10:
If we divide 1020 by 686, we get 1 and a remainder of 334.
The next digit of our result is 1. 
Result so far: 84923.31
Deduct 686 from 1020 and we're left with 334.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3340, and continue the process.

Let's proceed to step 11:
3340 divided by 686 is 4 with a remainder of 596.
The next digit of our result is 4. 
Result so far: 84923.314
Deduct 2744 from 3340 and we're left with 596.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5960, and continue the process.

On to step 12:
If we divide 5960 by 686, we get 8 and a remainder of 472.
Put 8 as the next digit of the answer. 
Result so far: 84923.3148
If we subtract 5488 from 5960, we get 472.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4720, and continue the process.

On to step 13:
686 goes into 4720 6 times with a remainder of 604.
The number 6 becomes the next digit in our result. 
Result so far: 84923.31486
Deduct 4116 from 4720 and we're left with 604.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6040, and continue the process.

Let's proceed to step 14:
The number 686 fits into 6040 8 times, leaving a remainder of 552.
The number 8 becomes the next digit in our result. 
Result so far: 84923.314868
Subtracting 5488 from 6040 leaves us with 552.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5520, and continue the process.

Let's proceed to step 15:
686 can be fit into 5520 8 times, resulting in a remainder of 32.
Use 8 as the next digit of our solution. 
Result so far: 84923.3148688
Subtracting 5488 from 5520 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The final outcome is 84923.3148688, with a leftover of 3.2e-07.