351224 ÷ 66 
We want to figure out the number of times 351224 can be divided by 66.

Advancing to step 1:
The number 66 fits into 3 0 times, leaving a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Take the next digit (5) from the dividend and append it to 3, then repeat: 35 / 66

Going ahead to step 2:
The number 66 fits into 35 0 times, leaving a remainder of 35.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 35 after subtracting 0 from 35.
Fetch the next digit (1) from the dividend, attach it to 35 and continue: 351 / 66

Let's proceed to step 3:
66 can be fit into 351 5 times, resulting in a remainder of 21.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Deduct 330 from 351 and we're left with 21.
Fetch the next digit (2) from the dividend, attach it to 21 and continue: 212 / 66

Moving on to step 4:
66 can be fit into 212 3 times, resulting in a remainder of 14.
Record the quotient 3 as the next digit in the result. 
Result so far: 53.0
If we take 198 away from 212, we end up with 14.
Fetch the next digit (2) from the dividend, attach it to 14 and continue: 142 / 66

On to step 5:
66 goes into 142 2 times with a remainder of 10.
The next digit of our result is 2. 
Result so far: 532.0
If we subtract 132 from 142, we get 10.
Include the next digit (4) from the dividend after 10, then repeat: 104 / 66

Going ahead to step 6:
66 can be fit into 104 1 times, resulting in a remainder of 38.
The number 1 becomes the next digit in our result. 
Result so far: 5321.0
Subtract 66 from 104 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 7:
66 goes into 380 5 times with a remainder of 50.
Put 5 as the next digit of the answer. 
Result so far: 5321.5
Subtract 330 from 380 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 8:
The number 66 fits into 500 7 times, leaving a remainder of 38.
The number 7 becomes the next digit in our result. 
Result so far: 5321.57
Subtracting 462 from 500 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 9:
The number 66 fits into 380 5 times, leaving a remainder of 50.
Record the quotient 5 as the next digit in the result. 
Result so far: 5321.575
If we take 330 away from 380, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 10:
66 can be fit into 500 7 times, resulting in a remainder of 38.
Record the quotient 7 as the next digit in the result. 
Result so far: 5321.5757
Subtracting 462 from 500 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 11:
The number 66 fits into 380 5 times, leaving a remainder of 50.
The next digit of our result is 5. 
Result so far: 5321.57575
If we take 330 away from 380, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 12:
If we divide 500 by 66, we get 7 and a remainder of 38.
The number 7 becomes the next digit in our result. 
Result so far: 5321.575757
Deduct 462 from 500 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 13:
380 divided by 66 is 5 with a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 5321.5757575
If we take 330 away from 380, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 14:
500 divided by 66 is 7 with a remainder of 38.
Write down 7 as next digit of the result. 
Result so far: 5321.57575757
The remainder is 38 after subtracting 462 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

The final result is 5321.57575757 with a remainder of 3.8e-08.