Let's divide 21948187 by 507
We want to divide 21948187 by 507.

Step 1:
507 goes into 2 0 times with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 507

On to step 2:
When dividing 21 by 507, we get 0 with a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Include the next digit (9) from the dividend after 21, then repeat: 219 / 507

On to step 3:
507 can be fit into 219 0 times, resulting in a remainder of 219.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 219 and we're left with 219.
Grab the next digit (4) from the dividend, add it to 219, then carry on: 2194 / 507

Going ahead to step 4:
If we divide 2194 by 507, we get 4 and a remainder of 166.
The next digit of our result is 4. 
Result so far: 4.0
If we subtract 2028 from 2194, we get 166.
Bring next digit (8) of the dividend behind the 166 and repeat the process: 1668 / 507

Let's proceed to step 5:
507 goes into 1668 3 times with a remainder of 147.
Record the quotient 3 as the next digit in the result. 
Result so far: 43.0
If we subtract 1521 from 1668, we get 147.
Append the next digit (1) from the dividend to 147 and continue with: 1471 / 507

Moving on to step 6:
If we divide 1471 by 507, we get 2 and a remainder of 457.
Use 2 as the next digit of our solution. 
Result so far: 432.0
Subtract 1014 from 1471 to get 457.
Take the next digit (8) from the dividend and append it to 457, then repeat: 4578 / 507

Going ahead to step 7:
4578 divided by 507 is 9 with a remainder of 15.
The number 9 becomes the next digit in our result. 
Result so far: 4329.0
The remainder is 15 after subtracting 4563 from 4578.
Append the next digit (7) from the dividend to 15 and continue with: 157 / 507

Advancing to step 8:
The number 507 fits into 157 0 times, leaving a remainder of 157.
Use 0 as the next digit of our solution. 
Result so far: 43290.0
Deduct 0 from 157 and we're left with 157.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

On to step 9:
507 goes into 1570 3 times with a remainder of 49.
Write down 3 as next digit of the result. 
Result so far: 43290.3
If we take 1521 away from 1570, we end up with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Moving on to step 10:
When dividing 490 by 507, we get 0 with a remainder of 490.
Write down 0 as next digit of the result. 
Result so far: 43290.3
Subtract 0 from 490 to get 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

Moving on to step 11:
4900 divided by 507 is 9 with a remainder of 337.
Put 9 as the next digit of the answer. 
Result so far: 43290.309
Subtracting 4563 from 4900 leaves us with 337.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3370, and continue the process.

On to step 12:
When dividing 3370 by 507, we get 6 with a remainder of 328.
The next digit of our result is 6. 
Result so far: 43290.3096
Deduct 3042 from 3370 and we're left 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.

Advancing to step 13:
507 goes into 3280 6 times with a remainder of 238.
The number 6 becomes the next digit in our result. 
Result so far: 43290.30966
Deduct 3042 from 3280 and we're left with 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

The quotient of the division is 43290.30966, and the remainder is 0.000238.