66103993 ÷ 747 
Our goal is to divide 66103993 by 747.

On to step 1:
747 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 747

Moving on to step 2:
747 goes into 66 0 times with a remainder of 66.
The next digit of our result is 0. 
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 / 747

Going ahead to step 3:
If we divide 661 by 747, we get 0 and a remainder of 661.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 661 after subtracting 0 from 661.
Include the next digit (0) from the dividend after 661, then repeat: 6610 / 747

Going ahead to step 4:
747 can be fit into 6610 8 times, resulting in a remainder of 634.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Deduct 5976 from 6610 and we're left with 634.
Take the next digit (3) from the dividend and append it to 634, then repeat: 6343 / 747

Let's proceed to step 5:
The number 747 fits into 6343 8 times, leaving a remainder of 367.
Write down 8 as next digit of the result. 
Result so far: 88.0
The remainder is 367 after subtracting 5976 from 6343.
Take the next digit (9) from the dividend and append it to 367, then repeat: 3679 / 747

Going ahead to step 6:
The number 747 fits into 3679 4 times, leaving a remainder of 691.
Put 4 as the next digit of the answer. 
Result so far: 884.0
The remainder is 691 after subtracting 2988 from 3679.
Fetch the next digit (9) from the dividend, attach it to 691 and continue: 6919 / 747

On to step 7:
The number 747 fits into 6919 9 times, leaving a remainder of 196.
Use 9 as the next digit of our solution. 
Result so far: 8849.0
Subtracting 6723 from 6919 leaves us with 196.
Fetch the next digit (3) from the dividend, attach it to 196 and continue: 1963 / 747

On to step 8:
1963 divided by 747 is 2 with a remainder of 469.
Put 2 as the next digit of the answer. 
Result so far: 88492.0
Subtract 1494 from 1963 to get 469.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4690, and continue the process.

Let's proceed to step 9:
The number 747 fits into 4690 6 times, leaving a remainder of 208.
Put 6 as the next digit of the answer. 
Result so far: 88492.6
If we subtract 4482 from 4690, we get 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Advancing to step 10:
747 goes into 2080 2 times with a remainder of 586.
Use 2 as the next digit of our solution. 
Result so far: 88492.62
Subtracting 1494 from 2080 leaves us with 586.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5860, and continue the process.

Step 11:
747 goes into 5860 7 times with a remainder of 631.
Write down 7 as next digit of the result. 
Result so far: 88492.627
Deduct 5229 from 5860 and we're left with 631.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6310, and continue the process.

Going ahead to step 12:
6310 divided by 747 is 8 with a remainder of 334.
Record the quotient 8 as the next digit in the result. 
Result so far: 88492.6278
If we subtract 5976 from 6310, we get 334.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3340, and continue the process.

Advancing to step 13:
The number 747 fits into 3340 4 times, leaving a remainder of 352.
Put 4 as the next digit of the answer. 
Result so far: 88492.62784
Deduct 2988 from 3340 and we're left 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.

Moving on to step 14:
747 can be fit into 3520 4 times, resulting in a remainder of 532.
Use 4 as the next digit of our solution. 
Result so far: 88492.627844
Subtract 2988 from 3520 to get 532.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5320, and continue the process.

The final outcome is 88492.627844, with a leftover of 5.32e-05.