We're dividing 54543643 by 428 
We want to divide 54543643 by 428.

Going ahead to step 1:
5 divided by 428 is 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Append the next digit (4) from the dividend to 5 and continue with: 54 / 428

Advancing to step 2:
The number 428 fits into 54 0 times, leaving a remainder of 54.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 54 leaves us with 54.
Bring next digit (5) of the dividend behind the 54 and repeat the process: 545 / 428

Step 3:
The number 428 fits into 545 1 times, leaving a remainder of 117.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 117 after subtracting 428 from 545.
Bring next digit (4) of the dividend behind the 117 and repeat the process: 1174 / 428

Advancing to step 4:
The number 428 fits into 1174 2 times, leaving a remainder of 318.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Subtracting 856 from 1174 leaves us with 318.
Fetch the next digit (3) from the dividend, attach it to 318 and continue: 3183 / 428

Advancing to step 5:
When dividing 3183 by 428, we get 7 with a remainder of 187.
Put 7 as the next digit of the answer. 
Result so far: 127.0
Subtracting 2996 from 3183 leaves us with 187.
Include the next digit (6) from the dividend after 187, then repeat: 1876 / 428

Going ahead to step 6:
If we divide 1876 by 428, we get 4 and a remainder of 164.
Record the quotient 4 as the next digit in the result. 
Result so far: 1274.0
Subtracting 1712 from 1876 leaves us with 164.
Grab the next digit (4) from the dividend, add it to 164, then carry on: 1644 / 428

Let's proceed to step 7:
428 can be fit into 1644 3 times, resulting in a remainder of 360.
Put 3 as the next digit of the answer. 
Result so far: 12743.0
Subtracting 1284 from 1644 leaves us with 360.
Bring next digit (3) of the dividend behind the 360 and repeat the process: 3603 / 428

Going ahead to step 8:
3603 divided by 428 is 8 with a remainder of 179.
Record the quotient 8 as the next digit in the result. 
Result so far: 127438.0
Deduct 3424 from 3603 and we're left with 179.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1790, and continue the process.

Advancing to step 9:
The number 428 fits into 1790 4 times, leaving a remainder of 78.
Record the quotient 4 as the next digit in the result. 
Result so far: 127438.4
Subtract 1712 from 1790 to get 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:
428 goes into 780 1 times with a remainder of 352.
Put 1 as the next digit of the answer. 
Result so far: 127438.41
If we subtract 428 from 780, we get 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Going ahead to step 11:
If we divide 3520 by 428, we get 8 and a remainder of 96.
Put 8 as the next digit of the answer. 
Result so far: 127438.418
If we subtract 3424 from 3520, we get 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Going ahead to step 12:
960 divided by 428 is 2 with a remainder of 104.
Record the quotient 2 as the next digit in the result. 
Result so far: 127438.4182
If we subtract 856 from 960, we get 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Moving on to step 13:
428 goes into 1040 2 times with a remainder of 184.
The number 2 becomes the next digit in our result. 
Result so far: 127438.41822
Subtracting 856 from 1040 leaves us 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 result is 127438.41822 with a remainder of 0.000184.