We're dividing 20591455 by 507 
We want to figure out the number of times 20591455 can be divided 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.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 507

Step 2:
When dividing 20 by 507, we get 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 20 and we're left with 20.
Bring next digit (5) of the dividend behind the 20 and repeat the process: 205 / 507

Step 3:
If we divide 205 by 507, we get 0 and a remainder of 205.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 205 leaves us with 205.
Grab the next digit (9) from the dividend, add it to 205, then carry on: 2059 / 507

On to step 4:
The number 507 fits into 2059 4 times, leaving a remainder of 31.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Deduct 2028 from 2059 and we're left with 31.
Bring next digit (1) of the dividend behind the 31 and repeat the process: 311 / 507

On to step 5:
If we divide 311 by 507, we get 0 and a remainder of 311.
Put 0 as the next digit of the answer. 
Result so far: 40.0
If we take 0 away from 311, we end up with 311.
Append the next digit (4) from the dividend to 311 and continue with: 3114 / 507

Going ahead to step 6:
When dividing 3114 by 507, we get 6 with a remainder of 72.
Use 6 as the next digit of our solution. 
Result so far: 406.0
Deduct 3042 from 3114 and we're left with 72.
Append the next digit (5) from the dividend to 72 and continue with: 725 / 507

Going ahead to step 7:
507 goes into 725 1 times with a remainder of 218.
Write down 1 as next digit of the result. 
Result so far: 4061.0
The remainder is 218 after subtracting 507 from 725.
Include the next digit (5) from the dividend after 218, then repeat: 2185 / 507

Step 8:
The number 507 fits into 2185 4 times, leaving a remainder of 157.
Record the quotient 4 as the next digit in the result. 
Result so far: 40614.0
Deduct 2028 from 2185 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.

Step 9:
1570 divided by 507 is 3 with a remainder of 49.
Put 3 as the next digit of the answer. 
Result so far: 40614.3
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.

Advancing to step 10:
The number 507 fits into 490 0 times, leaving a remainder of 490.
The number 0 becomes the next digit in our result. 
Result so far: 40614.3
Deduct 0 from 490 and we're left with 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

Step 11:
The number 507 fits into 4900 9 times, leaving a remainder of 337.
The number 9 becomes the next digit in our result. 
Result so far: 40614.309
The remainder is 337 after subtracting 4563 from 4900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3370, and continue the process.

Moving on to step 12:
When dividing 3370 by 507, we get 6 with a remainder of 328.
Use 6 as the next digit of our solution. 
Result so far: 40614.3096
If we take 3042 away from 3370, we end up 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.

On to step 13:
The number 507 fits into 3280 6 times, leaving a remainder of 238.
Record the quotient 6 as the next digit in the result. 
Result so far: 40614.30966
Subtracting 3042 from 3280 leaves us 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.

After the division, we end up with 40614.30966 and a remainder of 0.000238.