We look at the division of 12387617 by 583 
We want to figure out the number of times 12387617 can be divided by 583.

Step 1:
1 divided by 583 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 583

Moving on to step 2:
12 divided by 583 is 0 with a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 12 leaves us with 12.
Include the next digit (3) from the dividend after 12, then repeat: 123 / 583

Moving on to step 3:
When dividing 123 by 583, we get 0 with a remainder of 123.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 123 to get 123.
Grab the next digit (8) from the dividend, add it to 123, then carry on: 1238 / 583

Step 4:
1238 divided by 583 is 2 with a remainder of 72.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Deduct 1166 from 1238 and we're left with 72.
Grab the next digit (7) from the dividend, add it to 72, then carry on: 727 / 583

Advancing to step 5:
583 can be fit into 727 1 times, resulting in a remainder of 144.
Write down 1 as next digit of the result. 
Result so far: 21.0
Subtract 583 from 727 to get 144.
Take the next digit (6) from the dividend and append it to 144, then repeat: 1446 / 583

Advancing to step 6:
583 can be fit into 1446 2 times, resulting in a remainder of 280.
The number 2 becomes the next digit in our result. 
Result so far: 212.0
Subtracting 1166 from 1446 leaves us with 280.
Append the next digit (1) from the dividend to 280 and continue with: 2801 / 583

Moving on to step 7:
2801 divided by 583 is 4 with a remainder of 469.
Put 4 as the next digit of the answer. 
Result so far: 2124.0
Deduct 2332 from 2801 and we're left with 469.
Append the next digit (7) from the dividend to 469 and continue with: 4697 / 583

Let's proceed to step 8:
The number 583 fits into 4697 8 times, leaving a remainder of 33.
Write down 8 as next digit of the result. 
Result so far: 21248.0
If we take 4664 away from 4697, we end up with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 9:
583 can be fit into 330 0 times, resulting in a remainder of 330.
The number 0 becomes the next digit in our result. 
Result so far: 21248.0
Subtract 0 from 330 to get 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Let's proceed to step 10:
When dividing 3300 by 583, we get 5 with a remainder of 385.
Use 5 as the next digit of our solution. 
Result so far: 21248.05
If we subtract 2915 from 3300, we get 385.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3850, and continue the process.

Going ahead to step 11:
583 goes into 3850 6 times with a remainder of 352.
Write down 6 as next digit of the result. 
Result so far: 21248.056
If we subtract 3498 from 3850, we get 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Advancing to step 12:
583 can be fit into 3520 6 times, resulting in a remainder of 22.
Record the quotient 6 as the next digit in the result. 
Result so far: 21248.0566
Deduct 3498 from 3520 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

The final result is 21248.0566 with a remainder of 0.00022.