We look at the division of 66191328 by 543 
We want to figure out the number of times 66191328 can be divided by 543.

On to step 1:
543 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 543

Step 2:
When dividing 66 by 543, we get 0 with a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 66 and we're left with 66.
Bring next digit (1) of the dividend behind the 66 and repeat the process: 661 / 543

Let's proceed to step 3:
If we divide 661 by 543, we get 1 and a remainder of 118.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 118 after subtracting 543 from 661.
Bring next digit (9) of the dividend behind the 118 and repeat the process: 1189 / 543

Step 4:
If we divide 1189 by 543, we get 2 and a remainder of 103.
Write down 2 as next digit of the result. 
Result so far: 12.0
Subtracting 1086 from 1189 leaves us with 103.
Append the next digit (1) from the dividend to 103 and continue with: 1031 / 543

Step 5:
The number 543 fits into 1031 1 times, leaving a remainder of 488.
The next digit of our result is 1. 
Result so far: 121.0
Subtract 543 from 1031 to get 488.
Grab the next digit (3) from the dividend, add it to 488, then carry on: 4883 / 543

Advancing to step 6:
543 can be fit into 4883 8 times, resulting in a remainder of 539.
Use 8 as the next digit of our solution. 
Result so far: 1218.0
If we take 4344 away from 4883, we end up with 539.
Take the next digit (2) from the dividend and append it to 539, then repeat: 5392 / 543

Moving on to step 7:
543 goes into 5392 9 times with a remainder of 505.
Use 9 as the next digit of our solution. 
Result so far: 12189.0
If we take 4887 away from 5392, we end up with 505.
Bring next digit (8) of the dividend behind the 505 and repeat the process: 5058 / 543

Moving on to step 8:
When dividing 5058 by 543, we get 9 with a remainder of 171.
The number 9 becomes the next digit in our result. 
Result so far: 121899.0
If we subtract 4887 from 5058, we get 171.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1710, and continue the process.

Let's proceed to step 9:
1710 divided by 543 is 3 with a remainder of 81.
Write down 3 as next digit of the result. 
Result so far: 121899.3
Deduct 1629 from 1710 and we're left with 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

On to step 10:
543 can be fit into 810 1 times, resulting in a remainder of 267.
Record the quotient 1 as the next digit in the result. 
Result so far: 121899.31
If we subtract 543 from 810, we get 267.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2670, and continue the process.

Step 11:
2670 divided by 543 is 4 with a remainder of 498.
Use 4 as the next digit of our solution. 
Result so far: 121899.314
Subtracting 2172 from 2670 leaves us with 498.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4980, and continue the process.

On to step 12:
If we divide 4980 by 543, we get 9 and a remainder of 93.
The next digit of our result is 9. 
Result so far: 121899.3149
If we subtract 4887 from 4980, we get 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Advancing to step 13:
When dividing 930 by 543, we get 1 with a remainder of 387.
Record the quotient 1 as the next digit in the result. 
Result so far: 121899.31491
Subtract 543 from 930 to get 387.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3870, and continue the process.

Let's proceed to step 14:
The number 543 fits into 3870 7 times, leaving a remainder of 69.
Put 7 as the next digit of the answer. 
Result so far: 121899.314917
If we subtract 3801 from 3870, we get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Advancing to step 15:
The number 543 fits into 690 1 times, leaving a remainder of 147.
Record the quotient 1 as the next digit in the result. 
Result so far: 121899.3149171
Subtract 543 from 690 to get 147.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1470, and continue the process.

Going ahead to step 16:
The number 543 fits into 1470 2 times, leaving a remainder of 384.
Put 2 as the next digit of the answer. 
Result so far: 121899.31491712
The remainder is 384 after subtracting 1086 from 1470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

In conclusion, the division gives 121899.31491712 with a balance of 3.84e-07.