We look at the division of 753123 by 66 
We want to figure out the number of times 753123 can be divided by 66.

Going ahead to step 1:
66 goes into 7 0 times with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Fetch the next digit (5) from the dividend, attach it to 7 and continue: 75 / 66

Moving on to step 2:
If we divide 75 by 66, we get 1 and a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 66 away from 75, we end up with 9.
Take the next digit (3) from the dividend and append it to 9, then repeat: 93 / 66

On to step 3:
When dividing 93 by 66, we get 1 with a remainder of 27.
The next digit of our result is 1. 
Result so far: 11.0
Subtracting 66 from 93 leaves us with 27.
Include the next digit (1) from the dividend after 27, then repeat: 271 / 66

Step 4:
If we divide 271 by 66, we get 4 and a remainder of 7.
Record the quotient 4 as the next digit in the result. 
Result so far: 114.0
Subtract 264 from 271 to get 7.
Fetch the next digit (2) from the dividend, attach it to 7 and continue: 72 / 66

Going ahead to step 5:
If we divide 72 by 66, we get 1 and a remainder of 6.
Put 1 as the next digit of the answer. 
Result so far: 1141.0
If we take 66 away from 72, we end up with 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 66

Moving on to step 6:
When dividing 63 by 66, we get 0 with a remainder of 63.
Put 0 as the next digit of the answer. 
Result so far: 11410.0
Subtract 0 from 63 to get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Going ahead to step 7:
When dividing 630 by 66, we get 9 with a remainder of 36.
Record the quotient 9 as the next digit in the result. 
Result so far: 11410.9
If we subtract 594 from 630, we get 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 8:
66 can be fit into 360 5 times, resulting in a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 11410.95
Subtract 330 from 360 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 9:
66 goes into 300 4 times with a remainder of 36.
Put 4 as the next digit of the answer. 
Result so far: 11410.954
Subtracting 264 from 300 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.

Advancing to step 10:
The number 66 fits into 360 5 times, leaving a remainder of 30.
Put 5 as the next digit of the answer. 
Result so far: 11410.9545
Deduct 330 from 360 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 11:
300 divided by 66 is 4 with a remainder of 36.
The number 4 becomes the next digit in our result. 
Result so far: 11410.95454
If we take 264 away from 300, we end up 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.

Let's proceed to step 12:
The number 66 fits into 360 5 times, leaving a remainder of 30.
Use 5 as the next digit of our solution. 
Result so far: 11410.954545
Subtract 330 from 360 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 13:
300 divided by 66 is 4 with a remainder of 36.
Use 4 as the next digit of our solution. 
Result so far: 11410.9545454
If we subtract 264 from 300, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 14:
If we divide 360 by 66, we get 5 and a remainder of 30.
Record the quotient 5 as the next digit in the result. 
Result so far: 11410.95454545
If we take 330 away from 360, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

After the division, we end up with 11410.95454545 and a remainder of 3e-08.