We're dividing 58491251 by 668 
Let's see how many times 668 fits into 58491251.

Step 1:
If we divide 5 by 668, we get 0 and a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Include the next digit (8) from the dividend after 5, then repeat: 58 / 668

Moving on to step 2:
If we divide 58 by 668, we get 0 and a remainder of 58.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 58 leaves us with 58.
Grab the next digit (4) from the dividend, add it to 58, then carry on: 584 / 668

Going ahead to step 3:
When dividing 584 by 668, we get 0 with a remainder of 584.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 584, we end up with 584.
Bring next digit (9) of the dividend behind the 584 and repeat the process: 5849 / 668

Let's proceed to step 4:
5849 divided by 668 is 8 with a remainder of 505.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Deduct 5344 from 5849 and we're left with 505.
Grab the next digit (1) from the dividend, add it to 505, then carry on: 5051 / 668

Advancing to step 5:
When dividing 5051 by 668, we get 7 with a remainder of 375.
The number 7 becomes the next digit in our result. 
Result so far: 87.0
Deduct 4676 from 5051 and we're left with 375.
Append the next digit (2) from the dividend to 375 and continue with: 3752 / 668

Going ahead to step 6:
668 can be fit into 3752 5 times, resulting in a remainder of 412.
Record the quotient 5 as the next digit in the result. 
Result so far: 875.0
The remainder is 412 after subtracting 3340 from 3752.
Grab the next digit (5) from the dividend, add it to 412, then carry on: 4125 / 668

Advancing to step 7:
The number 668 fits into 4125 6 times, leaving a remainder of 117.
The number 6 becomes the next digit in our result. 
Result so far: 8756.0
Subtracting 4008 from 4125 leaves us with 117.
Include the next digit (1) from the dividend after 117, then repeat: 1171 / 668

On to step 8:
The number 668 fits into 1171 1 times, leaving a remainder of 503.
Record the quotient 1 as the next digit in the result. 
Result so far: 87561.0
Subtracting 668 from 1171 leaves us with 503.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5030, and continue the process.

Step 9:
668 goes into 5030 7 times with a remainder of 354.
Use 7 as the next digit of our solution. 
Result so far: 87561.7
Subtract 4676 from 5030 to get 354.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

Moving on to step 10:
The number 668 fits into 3540 5 times, leaving a remainder of 200.
Use 5 as the next digit of our solution. 
Result so far: 87561.75
Deduct 3340 from 3540 and we're left with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Step 11:
When dividing 2000 by 668, we get 2 with a remainder of 664.
The next digit of our result is 2. 
Result so far: 87561.752
Subtract 1336 from 2000 to get 664.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6640, and continue the process.

Let's proceed to step 12:
668 can be fit into 6640 9 times, resulting in a remainder of 628.
The number 9 becomes the next digit in our result. 
Result so far: 87561.7529
The remainder is 628 after subtracting 6012 from 6640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6280, and continue the process.

On to step 13:
The number 668 fits into 6280 9 times, leaving a remainder of 268.
Write down 9 as next digit of the result. 
Result so far: 87561.75299
The remainder is 268 after subtracting 6012 from 6280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

The final result is 87561.75299 with a remainder of 0.000268.