We're dividing 339686 by 58 
We want to divide 339686 by 58.

Step 1:
58 goes into 3 0 times with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Bring next digit (3) of the dividend behind the 3 and repeat the process: 33 / 58

Advancing to step 2:
33 divided by 58 is 0 with a remainder of 33.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 33, we end up with 33.
Include the next digit (9) from the dividend after 33, then repeat: 339 / 58

Step 3:
58 can be fit into 339 5 times, resulting in a remainder of 49.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtract 290 from 339 to get 49.
Append the next digit (6) from the dividend to 49 and continue with: 496 / 58

Moving on to step 4:
58 goes into 496 8 times with a remainder of 32.
Put 8 as the next digit of the answer. 
Result so far: 58.0
If we subtract 464 from 496, we get 32.
Include the next digit (8) from the dividend after 32, then repeat: 328 / 58

Step 5:
The number 58 fits into 328 5 times, leaving a remainder of 38.
The number 5 becomes the next digit in our result. 
Result so far: 585.0
Deduct 290 from 328 and we're left with 38.
Append the next digit (6) from the dividend to 38 and continue with: 386 / 58

Let's proceed to step 6:
If we divide 386 by 58, we get 6 and a remainder of 38.
The next digit of our result is 6. 
Result so far: 5856.0
If we take 348 away from 386, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 7:
When dividing 380 by 58, we get 6 with a remainder of 32.
Use 6 as the next digit of our solution. 
Result so far: 5856.6
Subtract 348 from 380 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 8:
58 can be fit into 320 5 times, resulting in a remainder of 30.
The next digit of our result is 5. 
Result so far: 5856.65
Subtracting 290 from 320 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 9:
When dividing 300 by 58, we get 5 with a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 5856.655
Deduct 290 from 300 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final outcome is 5856.655, with a leftover of 0.001.