We look at the division of 54816759 by 398 
We want to divide 54816759 by 398.

Advancing to step 1:
398 can be fit into 5 0 times, resulting in a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Bring next digit (4) of the dividend behind the 5 and repeat the process: 54 / 398

Step 2:
398 can be fit into 54 0 times, resulting in a remainder of 54.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 54, we get 54.
Fetch the next digit (8) from the dividend, attach it to 54 and continue: 548 / 398

Step 3:
The number 398 fits into 548 1 times, leaving a remainder of 150.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 398 from 548, we get 150.
Bring next digit (1) of the dividend behind the 150 and repeat the process: 1501 / 398

On to step 4:
398 can be fit into 1501 3 times, resulting in a remainder of 307.
Write down 3 as next digit of the result. 
Result so far: 13.0
Subtract 1194 from 1501 to get 307.
Fetch the next digit (6) from the dividend, attach it to 307 and continue: 3076 / 398

On to step 5:
When dividing 3076 by 398, we get 7 with a remainder of 290.
Put 7 as the next digit of the answer. 
Result so far: 137.0
If we subtract 2786 from 3076, we get 290.
Include the next digit (7) from the dividend after 290, then repeat: 2907 / 398

Step 6:
398 can be fit into 2907 7 times, resulting in a remainder of 121.
Record the quotient 7 as the next digit in the result. 
Result so far: 1377.0
If we take 2786 away from 2907, we end up with 121.
Fetch the next digit (5) from the dividend, attach it to 121 and continue: 1215 / 398

Advancing to step 7:
When dividing 1215 by 398, we get 3 with a remainder of 21.
Put 3 as the next digit of the answer. 
Result so far: 13773.0
Subtract 1194 from 1215 to get 21.
Take the next digit (9) from the dividend and append it to 21, then repeat: 219 / 398

Let's proceed to step 8:
When dividing 219 by 398, we get 0 with a remainder of 219.
Write down 0 as next digit of the result. 
Result so far: 137730.0
If we subtract 0 from 219, we get 219.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2190, and continue the process.

Step 9:
398 can be fit into 2190 5 times, resulting in a remainder of 200.
Use 5 as the next digit of our solution. 
Result so far: 137730.5
If we take 1990 away from 2190, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Moving on to step 10:
If we divide 2000 by 398, we get 5 and a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 137730.55
Subtracting 1990 from 2000 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

After the division, we end up with 137730.55 and a remainder of 0.01.