We're dividing 54103534 by 321 
We want to figure out the number of times 54103534 can be divided by 321.

Let's proceed to step 1:
When dividing 5 by 321, we get 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Fetch the next digit (4) from the dividend, attach it to 5 and continue: 54 / 321

Step 2:
54 divided by 321 is 0 with a remainder of 54.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 54, we get 54.
Append the next digit (1) from the dividend to 54 and continue with: 541 / 321

Moving on to step 3:
When dividing 541 by 321, we get 1 with a remainder of 220.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 321 from 541 to get 220.
Grab the next digit (0) from the dividend, add it to 220, then carry on: 2200 / 321

Advancing to step 4:
The number 321 fits into 2200 6 times, leaving a remainder of 274.
Write down 6 as next digit of the result. 
Result so far: 16.0
Subtracting 1926 from 2200 leaves us with 274.
Grab the next digit (3) from the dividend, add it to 274, then carry on: 2743 / 321

On to step 5:
321 can be fit into 2743 8 times, resulting in a remainder of 175.
Put 8 as the next digit of the answer. 
Result so far: 168.0
The remainder is 175 after subtracting 2568 from 2743.
Bring next digit (5) of the dividend behind the 175 and repeat the process: 1755 / 321

Going ahead to step 6:
The number 321 fits into 1755 5 times, leaving a remainder of 150.
The next digit of our result is 5. 
Result so far: 1685.0
If we take 1605 away from 1755, we end up with 150.
Include the next digit (3) from the dividend after 150, then repeat: 1503 / 321

On to step 7:
When dividing 1503 by 321, we get 4 with a remainder of 219.
The number 4 becomes the next digit in our result. 
Result so far: 16854.0
Deduct 1284 from 1503 and we're left with 219.
Fetch the next digit (4) from the dividend, attach it to 219 and continue: 2194 / 321

Moving on to step 8:
321 can be fit into 2194 6 times, resulting in a remainder of 268.
The next digit of our result is 6. 
Result so far: 168546.0
If we subtract 1926 from 2194, we get 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

Going ahead to step 9:
2680 divided by 321 is 8 with a remainder of 112.
Use 8 as the next digit of our solution. 
Result so far: 168546.8
If we take 2568 away from 2680, we end up with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Step 10:
The number 321 fits into 1120 3 times, leaving a remainder of 157.
Put 3 as the next digit of the answer. 
Result so far: 168546.83
If we take 963 away from 1120, we end up with 157.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

On to step 11:
321 can be fit into 1570 4 times, resulting in a remainder of 286.
The next digit of our result is 4. 
Result so far: 168546.834
The remainder is 286 after subtracting 1284 from 1570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2860, and continue the process.

Moving on to step 12:
When dividing 2860 by 321, we get 8 with a remainder of 292.
Record the quotient 8 as the next digit in the result. 
Result so far: 168546.8348
Deduct 2568 from 2860 and we're left with 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

Moving on to step 13:
If we divide 2920 by 321, we get 9 and a remainder of 31.
Use 9 as the next digit of our solution. 
Result so far: 168546.83489
Deduct 2889 from 2920 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Step 14:
When dividing 310 by 321, we get 0 with a remainder of 310.
The number 0 becomes the next digit in our result. 
Result so far: 168546.83489
Deduct 0 from 310 and we're left with 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Advancing to step 15:
The number 321 fits into 3100 9 times, leaving a remainder of 211.
Use 9 as the next digit of our solution. 
Result so far: 168546.8348909
Subtract 2889 from 3100 to get 211.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2110, and continue the process.

Let's proceed to step 16:
When dividing 2110 by 321, we get 6 with a remainder of 184.
The number 6 becomes the next digit in our result. 
Result so far: 168546.83489096
The remainder is 184 after subtracting 1926 from 2110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

In conclusion, the division gives 168546.83489096 with a balance of 1.84e-07.