We look at the division of 20582554 by 398 
Let's see how many times 398 fits into 20582554.

Step 1:
The number 398 fits into 2 0 times, leaving a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Grab the next digit (0) from the dividend, add it to 2, then carry on: 20 / 398

Moving on to step 2:
398 can be fit into 20 0 times, resulting in a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 20 to get 20.
Append the next digit (5) from the dividend to 20 and continue with: 205 / 398

Going ahead to step 3:
205 divided by 398 is 0 with a remainder of 205.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 205 and we're left with 205.
Grab the next digit (8) from the dividend, add it to 205, then carry on: 2058 / 398

Advancing to step 4:
398 goes into 2058 5 times with a remainder of 68.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtracting 1990 from 2058 leaves us with 68.
Append the next digit (2) from the dividend to 68 and continue with: 682 / 398

Going ahead to step 5:
398 can be fit into 682 1 times, resulting in a remainder of 284.
The next digit of our result is 1. 
Result so far: 51.0
Subtracting 398 from 682 leaves us with 284.
Fetch the next digit (5) from the dividend, attach it to 284 and continue: 2845 / 398

Advancing to step 6:
The number 398 fits into 2845 7 times, leaving a remainder of 59.
The number 7 becomes the next digit in our result. 
Result so far: 517.0
The remainder is 59 after subtracting 2786 from 2845.
Take the next digit (5) from the dividend and append it to 59, then repeat: 595 / 398

Moving on to step 7:
If we divide 595 by 398, we get 1 and a remainder of 197.
Record the quotient 1 as the next digit in the result. 
Result so far: 5171.0
Subtract 398 from 595 to get 197.
Take the next digit (4) from the dividend and append it to 197, then repeat: 1974 / 398

Step 8:
The number 398 fits into 1974 4 times, leaving a remainder of 382.
Write down 4 as next digit of the result. 
Result so far: 51714.0
If we take 1592 away from 1974, we end up with 382.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3820, and continue the process.

Going ahead to step 9:
3820 divided by 398 is 9 with a remainder of 238.
Put 9 as the next digit of the answer. 
Result so far: 51714.9
If we take 3582 away from 3820, we end up 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.

Going ahead to step 10:
If we divide 2380 by 398, we get 5 and a remainder of 390.
Record the quotient 5 as the next digit in the result. 
Result so far: 51714.95
Subtracting 1990 from 2380 leaves us with 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Step 11:
3900 divided by 398 is 9 with a remainder of 318.
Use 9 as the next digit of our solution. 
Result so far: 51714.959
If we subtract 3582 from 3900, we get 318.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3180, and continue the process.

Moving on to step 12:
If we divide 3180 by 398, we get 7 and a remainder of 394.
Put 7 as the next digit of the answer. 
Result so far: 51714.9597
If we subtract 2786 from 3180, we get 394.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

Step 13:
398 can be fit into 3940 9 times, resulting in a remainder of 358.
Write down 9 as next digit of the result. 
Result so far: 51714.95979
If we take 3582 away from 3940, we end up with 358.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3580, and continue the process.

On to step 14:
398 goes into 3580 8 times with a remainder of 396.
Put 8 as the next digit of the answer. 
Result so far: 51714.959798
Subtracting 3184 from 3580 leaves us with 396.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3960, and continue the process.

On to step 15:
If we divide 3960 by 398, we get 9 and a remainder of 378.
Use 9 as the next digit of our solution. 
Result so far: 51714.9597989
If we take 3582 away from 3960, we end up with 378.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3780, and continue the process.

Moving on to step 16:
When dividing 3780 by 398, we get 9 with a remainder of 198.
Put 9 as the next digit of the answer. 
Result so far: 51714.95979899
The remainder is 198 after subtracting 3582 from 3780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

The final result is 51714.95979899 with a remainder of 1.98e-07.