Let's divide 74387124 by 580
We want to divide 74387124 by 580.

Moving on to step 1:
The number 580 fits into 7 0 times, leaving a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Fetch the next digit (4) from the dividend, attach it to 7 and continue: 74 / 580

On to step 2:
The number 580 fits into 74 0 times, leaving a remainder of 74.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 74 to get 74.
Bring next digit (3) of the dividend behind the 74 and repeat the process: 743 / 580

Advancing to step 3:
The number 580 fits into 743 1 times, leaving a remainder of 163.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 580 from 743 and we're left with 163.
Append the next digit (8) from the dividend to 163 and continue with: 1638 / 580

Moving on to step 4:
When dividing 1638 by 580, we get 2 with a remainder of 478.
The next digit of our result is 2. 
Result so far: 12.0
Subtracting 1160 from 1638 leaves us with 478.
Grab the next digit (7) from the dividend, add it to 478, then carry on: 4787 / 580

Moving on to step 5:
When dividing 4787 by 580, we get 8 with a remainder of 147.
Record the quotient 8 as the next digit in the result. 
Result so far: 128.0
Subtract 4640 from 4787 to get 147.
Append the next digit (1) from the dividend to 147 and continue with: 1471 / 580

Going ahead to step 6:
580 can be fit into 1471 2 times, resulting in a remainder of 311.
The next digit of our result is 2. 
Result so far: 1282.0
If we subtract 1160 from 1471, we get 311.
Fetch the next digit (2) from the dividend, attach it to 311 and continue: 3112 / 580

Step 7:
The number 580 fits into 3112 5 times, leaving a remainder of 212.
The next digit of our result is 5. 
Result so far: 12825.0
Subtracting 2900 from 3112 leaves us with 212.
Grab the next digit (4) from the dividend, add it to 212, then carry on: 2124 / 580

Let's proceed to step 8:
2124 divided by 580 is 3 with a remainder of 384.
Put 3 as the next digit of the answer. 
Result so far: 128253.0
Subtracting 1740 from 2124 leaves us with 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Going ahead to step 9:
If we divide 3840 by 580, we get 6 and a remainder of 360.
Use 6 as the next digit of our solution. 
Result so far: 128253.6
If we subtract 3480 from 3840, we get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Going ahead to step 10:
580 goes into 3600 6 times with a remainder of 120.
The number 6 becomes the next digit in our result. 
Result so far: 128253.66
Subtracting 3480 from 3600 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Our division results in 128253.66 with a remaining 0.12.