We look at the division of 55082126 by 399 
Let's see how many times 399 fits into 55082126.

On to step 1:
The number 399 fits into 5 0 times, leaving a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Fetch the next digit (5) from the dividend, attach it to 5 and continue: 55 / 399

Step 2:
399 goes into 55 0 times with a remainder of 55.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 55, we end up with 55.
Fetch the next digit (0) from the dividend, attach it to 55 and continue: 550 / 399

Moving on to step 3:
399 can be fit into 550 1 times, resulting in a remainder of 151.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 151 after subtracting 399 from 550.
Append the next digit (8) from the dividend to 151 and continue with: 1518 / 399

Advancing to step 4:
1518 divided by 399 is 3 with a remainder of 321.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
Subtract 1197 from 1518 to get 321.
Append the next digit (2) from the dividend to 321 and continue with: 3212 / 399

Going ahead to step 5:
If we divide 3212 by 399, we get 8 and a remainder of 20.
Put 8 as the next digit of the answer. 
Result so far: 138.0
Subtracting 3192 from 3212 leaves us with 20.
Append the next digit (1) from the dividend to 20 and continue with: 201 / 399

Let's proceed to step 6:
When dividing 201 by 399, we get 0 with a remainder of 201.
The next digit of our result is 0. 
Result so far: 1380.0
Subtracting 0 from 201 leaves us with 201.
Grab the next digit (2) from the dividend, add it to 201, then carry on: 2012 / 399

Let's proceed to step 7:
If we divide 2012 by 399, we get 5 and a remainder of 17.
The number 5 becomes the next digit in our result. 
Result so far: 13805.0
If we subtract 1995 from 2012, we get 17.
Include the next digit (6) from the dividend after 17, then repeat: 176 / 399

On to step 8:
If we divide 176 by 399, we get 0 and a remainder of 176.
Write down 0 as next digit of the result. 
Result so far: 138050.0
Subtracting 0 from 176 leaves us with 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Advancing to step 9:
399 goes into 1760 4 times with a remainder of 164.
Put 4 as the next digit of the answer. 
Result so far: 138050.4
Subtract 1596 from 1760 to get 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

Step 10:
399 goes into 1640 4 times with a remainder of 44.
The number 4 becomes the next digit in our result. 
Result so far: 138050.44
If we subtract 1596 from 1640, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

In conclusion, the division gives 138050.44 with a balance of 0.044.