We're dividing 55009949 by 428 
Our goal is to divide 55009949 by 428.

Let's proceed to step 1:
5 divided by 428 is 0 with 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.
Include the next digit (5) from the dividend after 5, then repeat: 55 / 428

Going ahead to step 2:
428 can be fit into 55 0 times, resulting in a remainder of 55.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 55 leaves us with 55.
Take the next digit (0) from the dividend and append it to 55, then repeat: 550 / 428

Advancing to step 3:
550 divided by 428 is 1 with a remainder of 122.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 428 away from 550, we end up with 122.
Include the next digit (0) from the dividend after 122, then repeat: 1220 / 428

Step 4:
428 can be fit into 1220 2 times, resulting in a remainder of 364.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Subtracting 856 from 1220 leaves us with 364.
Include the next digit (9) from the dividend after 364, then repeat: 3649 / 428

On to step 5:
3649 divided by 428 is 8 with a remainder of 225.
The next digit of our result is 8. 
Result so far: 128.0
If we take 3424 away from 3649, we end up with 225.
Include the next digit (9) from the dividend after 225, then repeat: 2259 / 428

Let's proceed to step 6:
The number 428 fits into 2259 5 times, leaving a remainder of 119.
The number 5 becomes the next digit in our result. 
Result so far: 1285.0
Deduct 2140 from 2259 and we're left with 119.
Append the next digit (4) from the dividend to 119 and continue with: 1194 / 428

Let's proceed to step 7:
When dividing 1194 by 428, we get 2 with a remainder of 338.
Put 2 as the next digit of the answer. 
Result so far: 12852.0
If we take 856 away from 1194, we end up with 338.
Include the next digit (9) from the dividend after 338, then repeat: 3389 / 428

Going ahead to step 8:
When dividing 3389 by 428, we get 7 with a remainder of 393.
Record the quotient 7 as the next digit in the result. 
Result so far: 128527.0
Subtract 2996 from 3389 to get 393.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3930, and continue the process.

Moving on to step 9:
428 can be fit into 3930 9 times, resulting in a remainder of 78.
Put 9 as the next digit of the answer. 
Result so far: 128527.9
If we take 3852 away from 3930, we end up with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Moving on to step 10:
When dividing 780 by 428, we get 1 with a remainder of 352.
Record the quotient 1 as the next digit in the result. 
Result so far: 128527.91
If we take 428 away from 780, we end up with 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Advancing to step 11:
The number 428 fits into 3520 8 times, leaving a remainder of 96.
The next digit of our result is 8. 
Result so far: 128527.918
Deduct 3424 from 3520 and we're left with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Moving on to step 12:
960 divided by 428 is 2 with a remainder of 104.
The next digit of our result is 2. 
Result so far: 128527.9182
Deduct 856 from 960 and we're left with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Advancing to step 13:
If we divide 1040 by 428, we get 2 and a remainder of 184.
The next digit of our result is 2. 
Result so far: 128527.91822
The remainder is 184 after subtracting 856 from 1040.
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 128527.91822, with a leftover of 0.000184.