66215386 ÷ 558 
We want to figure out the number of times 66215386 can be divided by 558.

Step 1:
558 can be fit into 6 0 times, resulting in a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 558

Advancing to step 2:
When dividing 66 by 558, we get 0 with a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 66, we get 66.
Bring next digit (2) of the dividend behind the 66 and repeat the process: 662 / 558

Going ahead to step 3:
662 divided by 558 is 1 with a remainder of 104.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 558 from 662 to get 104.
Take the next digit (1) from the dividend and append it to 104, then repeat: 1041 / 558

On to step 4:
If we divide 1041 by 558, we get 1 and a remainder of 483.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
If we subtract 558 from 1041, we get 483.
Fetch the next digit (5) from the dividend, attach it to 483 and continue: 4835 / 558

On to step 5:
4835 divided by 558 is 8 with a remainder of 371.
Use 8 as the next digit of our solution. 
Result so far: 118.0
If we subtract 4464 from 4835, we get 371.
Append the next digit (3) from the dividend to 371 and continue with: 3713 / 558

Let's proceed to step 6:
When dividing 3713 by 558, we get 6 with a remainder of 365.
Record the quotient 6 as the next digit in the result. 
Result so far: 1186.0
Subtract 3348 from 3713 to get 365.
Fetch the next digit (8) from the dividend, attach it to 365 and continue: 3658 / 558

Going ahead to step 7:
If we divide 3658 by 558, we get 6 and a remainder of 310.
Write down 6 as next digit of the result. 
Result so far: 11866.0
If we take 3348 away from 3658, we end up with 310.
Include the next digit (6) from the dividend after 310, then repeat: 3106 / 558

Moving on to step 8:
If we divide 3106 by 558, we get 5 and a remainder of 316.
Record the quotient 5 as the next digit in the result. 
Result so far: 118665.0
If we take 2790 away from 3106, we end up with 316.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

Moving on to step 9:
If we divide 3160 by 558, we get 5 and a remainder of 370.
Write down 5 as next digit of the result. 
Result so far: 118665.5
If we take 2790 away from 3160, we end up with 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Let's proceed to step 10:
558 can be fit into 3700 6 times, resulting in a remainder of 352.
Use 6 as the next digit of our solution. 
Result so far: 118665.56
If we subtract 3348 from 3700, we get 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 11:
558 goes into 3520 6 times with a remainder of 172.
Record the quotient 6 as the next digit in the result. 
Result so far: 118665.566
Subtract 3348 from 3520 to get 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

The quotient of the division is 118665.566, and the remainder is 0.0172.