Let's divide 21945592 by 666
We're looking to find how many times 666 goes into 21945592.

Advancing to step 1:
The number 666 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 666

Advancing to step 2:
666 can be fit into 21 0 times, resulting in a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Take the next digit (9) from the dividend and append it to 21, then repeat: 219 / 666

Moving on to step 3:
666 goes into 219 0 times with a remainder of 219.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 219, we get 219.
Include the next digit (4) from the dividend after 219, then repeat: 2194 / 666

On to step 4:
The number 666 fits into 2194 3 times, leaving a remainder of 196.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtracting 1998 from 2194 leaves us with 196.
Grab the next digit (5) from the dividend, add it to 196, then carry on: 1965 / 666

Moving on to step 5:
666 goes into 1965 2 times with a remainder of 633.
Write down 2 as next digit of the result. 
Result so far: 32.0
Deduct 1332 from 1965 and we're left with 633.
Take the next digit (5) from the dividend and append it to 633, then repeat: 6335 / 666

On to step 6:
666 goes into 6335 9 times with a remainder of 341.
Put 9 as the next digit of the answer. 
Result so far: 329.0
Deduct 5994 from 6335 and we're left with 341.
Grab the next digit (9) from the dividend, add it to 341, then carry on: 3419 / 666

Advancing to step 7:
When dividing 3419 by 666, we get 5 with a remainder of 89.
Use 5 as the next digit of our solution. 
Result so far: 3295.0
Deduct 3330 from 3419 and we're left with 89.
Take the next digit (2) from the dividend and append it to 89, then repeat: 892 / 666

Step 8:
666 can be fit into 892 1 times, resulting in a remainder of 226.
The number 1 becomes the next digit in our result. 
Result so far: 32951.0
Subtract 666 from 892 to get 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

Let's proceed to step 9:
The number 666 fits into 2260 3 times, leaving a remainder of 262.
Write down 3 as next digit of the result. 
Result so far: 32951.3
If we take 1998 away from 2260, we end up with 262.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2620, and continue the process.

On to step 10:
666 can be fit into 2620 3 times, resulting in a remainder of 622.
Write down 3 as next digit of the result. 
Result so far: 32951.33
If we take 1998 away from 2620, we end up with 622.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6220, and continue the process.

After the division, we end up with 32951.33 and a remainder of 0.622.