We're dividing 20388571 by 408 
We want to divide 20388571 by 408.

Moving on to step 1:
The number 408 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Grab the next digit (0) from the dividend, add it to 2, then carry on: 20 / 408

Step 2:
20 divided by 408 is 0 with a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 20 to get 20.
Take the next digit (3) from the dividend and append it to 20, then repeat: 203 / 408

Moving on to step 3:
408 goes into 203 0 times with a remainder of 203.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 203 leaves us with 203.
Fetch the next digit (8) from the dividend, attach it to 203 and continue: 2038 / 408

Let's proceed to step 4:
408 goes into 2038 4 times with a remainder of 406.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtract 1632 from 2038 to get 406.
Fetch the next digit (8) from the dividend, attach it to 406 and continue: 4068 / 408

Step 5:
When dividing 4068 by 408, we get 9 with a remainder of 396.
Write down 9 as next digit of the result. 
Result so far: 49.0
If we subtract 3672 from 4068, we get 396.
Take the next digit (5) from the dividend and append it to 396, then repeat: 3965 / 408

On to step 6:
When dividing 3965 by 408, we get 9 with a remainder of 293.
The next digit of our result is 9. 
Result so far: 499.0
Deduct 3672 from 3965 and we're left with 293.
Take the next digit (7) from the dividend and append it to 293, then repeat: 2937 / 408

Going ahead to step 7:
408 goes into 2937 7 times with a remainder of 81.
Record the quotient 7 as the next digit in the result. 
Result so far: 4997.0
Deduct 2856 from 2937 and we're left with 81.
Grab the next digit (1) from the dividend, add it to 81, then carry on: 811 / 408

Moving on to step 8:
811 divided by 408 is 1 with a remainder of 403.
Put 1 as the next digit of the answer. 
Result so far: 49971.0
If we take 408 away from 811, we end up with 403.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4030, and continue the process.

Step 9:
4030 divided by 408 is 9 with a remainder of 358.
Use 9 as the next digit of our solution. 
Result so far: 49971.9
Subtract 3672 from 4030 to get 358.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3580, and continue the process.

Moving on to step 10:
408 can be fit into 3580 8 times, resulting in a remainder of 316.
Write down 8 as next digit of the result. 
Result so far: 49971.98
Subtract 3264 from 3580 to get 316.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

Advancing to step 11:
408 can be fit into 3160 7 times, resulting in a remainder of 304.
Put 7 as the next digit of the answer. 
Result so far: 49971.987
If we take 2856 away from 3160, we end up with 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Advancing to step 12:
The number 408 fits into 3040 7 times, leaving a remainder of 184.
The number 7 becomes the next digit in our result. 
Result so far: 49971.9877
If we take 2856 away from 3040, we end up with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

The final outcome is 49971.9877, with a leftover of 0.00184.