We're dividing 54534389 by 121 
Our goal is to divide 54534389 by 121.

Going ahead to step 1:
121 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
The remainder is 5 after subtracting 0 from 5.
Include the next digit (4) from the dividend after 5, then repeat: 54 / 121

On to step 2:
The number 121 fits into 54 0 times, leaving a remainder of 54.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 54 and we're left with 54.
Grab the next digit (5) from the dividend, add it to 54, then carry on: 545 / 121

Let's proceed to step 3:
121 goes into 545 4 times with a remainder of 61.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we subtract 484 from 545, we get 61.
Bring next digit (3) of the dividend behind the 61 and repeat the process: 613 / 121

Advancing to step 4:
If we divide 613 by 121, we get 5 and a remainder of 8.
The number 5 becomes the next digit in our result. 
Result so far: 45.0
The remainder is 8 after subtracting 605 from 613.
Take the next digit (4) from the dividend and append it to 8, then repeat: 84 / 121

Moving on to step 5:
When dividing 84 by 121, we get 0 with a remainder of 84.
Record the quotient 0 as the next digit in the result. 
Result so far: 450.0
The remainder is 84 after subtracting 0 from 84.
Include the next digit (3) from the dividend after 84, then repeat: 843 / 121

Step 6:
If we divide 843 by 121, we get 6 and a remainder of 117.
Write down 6 as next digit of the result. 
Result so far: 4506.0
Subtract 726 from 843 to get 117.
Take the next digit (8) from the dividend and append it to 117, then repeat: 1178 / 121

Going ahead to step 7:
If we divide 1178 by 121, we get 9 and a remainder of 89.
The number 9 becomes the next digit in our result. 
Result so far: 45069.0
Deduct 1089 from 1178 and we're left with 89.
Bring next digit (9) of the dividend behind the 89 and repeat the process: 899 / 121

Advancing to step 8:
121 goes into 899 7 times with a remainder of 52.
Write down 7 as next digit of the result. 
Result so far: 450697.0
If we subtract 847 from 899, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 9:
520 divided by 121 is 4 with a remainder of 36.
Use 4 as the next digit of our solution. 
Result so far: 450697.4
Subtracting 484 from 520 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 10:
If we divide 360 by 121, we get 2 and a remainder of 118.
Write down 2 as next digit of the result. 
Result so far: 450697.42
The remainder is 118 after subtracting 242 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Step 11:
121 can be fit into 1180 9 times, resulting in a remainder of 91.
The number 9 becomes the next digit in our result. 
Result so far: 450697.429
Deduct 1089 from 1180 and we're left with 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Let's proceed to step 12:
If we divide 910 by 121, we get 7 and a remainder of 63.
Write down 7 as next digit of the result. 
Result so far: 450697.4297
If we take 847 away from 910, we end up with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

On to step 13:
121 can be fit into 630 5 times, resulting in a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 450697.42975
The remainder is 25 after subtracting 605 from 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 14:
250 divided by 121 is 2 with a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 450697.429752
If we take 242 away from 250, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 15:
121 can be fit into 80 0 times, resulting in a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 450697.429752
If we take 0 away from 80, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 16:
800 divided by 121 is 6 with a remainder of 74.
Put 6 as the next digit of the answer. 
Result so far: 450697.42975206
If we take 726 away from 800, we end up with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

After the division, we end up with 450697.42975206 and a remainder of 7.4e-08.