21389576 divided by 508 
We're looking to find how many times 508 goes into 21389576.

Step 1:
When dividing 2 by 508, we get 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 508

Going ahead to step 2:
If we divide 21 by 508, we get 0 and a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Append the next digit (3) from the dividend to 21 and continue with: 213 / 508

Advancing to step 3:
213 divided by 508 is 0 with a remainder of 213.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 213 after subtracting 0 from 213.
Bring next digit (8) of the dividend behind the 213 and repeat the process: 2138 / 508

Going ahead to step 4:
When dividing 2138 by 508, we get 4 with a remainder of 106.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtract 2032 from 2138 to get 106.
Fetch the next digit (9) from the dividend, attach it to 106 and continue: 1069 / 508

Advancing to step 5:
508 goes into 1069 2 times with a remainder of 53.
The number 2 becomes the next digit in our result. 
Result so far: 42.0
Subtracting 1016 from 1069 leaves us with 53.
Fetch the next digit (5) from the dividend, attach it to 53 and continue: 535 / 508

Step 6:
The number 508 fits into 535 1 times, leaving a remainder of 27.
The next digit of our result is 1. 
Result so far: 421.0
The remainder is 27 after subtracting 508 from 535.
Include the next digit (7) from the dividend after 27, then repeat: 277 / 508

On to step 7:
508 can be fit into 277 0 times, resulting in a remainder of 277.
Put 0 as the next digit of the answer. 
Result so far: 4210.0
If we subtract 0 from 277, we get 277.
Take the next digit (6) from the dividend and append it to 277, then repeat: 2776 / 508

Let's proceed to step 8:
If we divide 2776 by 508, we get 5 and a remainder of 236.
Record the quotient 5 as the next digit in the result. 
Result so far: 42105.0
The remainder is 236 after subtracting 2540 from 2776.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2360, and continue the process.

Advancing to step 9:
When dividing 2360 by 508, we get 4 with a remainder of 328.
Use 4 as the next digit of our solution. 
Result so far: 42105.4
Subtracting 2032 from 2360 leaves us with 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

Let's proceed to step 10:
When dividing 3280 by 508, we get 6 with a remainder of 232.
Use 6 as the next digit of our solution. 
Result so far: 42105.46
The remainder is 232 after subtracting 3048 from 3280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

Advancing to step 11:
The number 508 fits into 2320 4 times, leaving a remainder of 288.
Record the quotient 4 as the next digit in the result. 
Result so far: 42105.464
If we take 2032 away from 2320, we end up with 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

Step 12:
If we divide 2880 by 508, we get 5 and a remainder of 340.
Put 5 as the next digit of the answer. 
Result so far: 42105.4645
The remainder is 340 after subtracting 2540 from 2880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Advancing to step 13:
508 goes into 3400 6 times with a remainder of 352.
Use 6 as the next digit of our solution. 
Result so far: 42105.46456
If we subtract 3048 from 3400, 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 14:
When dividing 3520 by 508, we get 6 with a remainder of 472.
Put 6 as the next digit of the answer. 
Result so far: 42105.464566
The remainder is 472 after subtracting 3048 from 3520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4720, and continue the process.

The final outcome is 42105.464566, with a leftover of 4.72e-05.