1668980 ÷ 522 
Our goal is to divide 1668980 by 522.

On to step 1:
522 can be fit into 1 0 times, resulting in a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Bring next digit (6) of the dividend behind the 1 and repeat the process: 16 / 522

On to step 2:
If we divide 16 by 522, we get 0 and a remainder of 16.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 16, we end up with 16.
Include the next digit (6) from the dividend after 16, then repeat: 166 / 522

Going ahead to step 3:
If we divide 166 by 522, we get 0 and a remainder of 166.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 166 after subtracting 0 from 166.
Bring next digit (8) of the dividend behind the 166 and repeat the process: 1668 / 522

Step 4:
522 goes into 1668 3 times with a remainder of 102.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtracting 1566 from 1668 leaves us with 102.
Fetch the next digit (9) from the dividend, attach it to 102 and continue: 1029 / 522

Let's proceed to step 5:
When dividing 1029 by 522, we get 1 with a remainder of 507.
Put 1 as the next digit of the answer. 
Result so far: 31.0
Deduct 522 from 1029 and we're left with 507.
Take the next digit (8) from the dividend and append it to 507, then repeat: 5078 / 522

Going ahead to step 6:
522 goes into 5078 9 times with a remainder of 380.
The next digit of our result is 9. 
Result so far: 319.0
If we take 4698 away from 5078, we end up with 380.
Bring next digit (0) of the dividend behind the 380 and repeat the process: 3800 / 522

Let's proceed to step 7:
522 goes into 3800 7 times with a remainder of 146.
Use 7 as the next digit of our solution. 
Result so far: 3197.0
Subtracting 3654 from 3800 leaves us with 146.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1460, and continue the process.

Advancing to step 8:
The number 522 fits into 1460 2 times, leaving a remainder of 416.
Write down 2 as next digit of the result. 
Result so far: 3197.2
If we take 1044 away from 1460, we end up with 416.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4160, and continue the process.

Advancing to step 9:
522 goes into 4160 7 times with a remainder of 506.
The number 7 becomes the next digit in our result. 
Result so far: 3197.27
The remainder is 506 after subtracting 3654 from 4160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5060, and continue the process.

Going ahead to step 10:
If we divide 5060 by 522, we get 9 and a remainder of 362.
Write down 9 as next digit of the result. 
Result so far: 3197.279
Subtracting 4698 from 5060 leaves us with 362.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3620, and continue the process.

Moving on to step 11:
3620 divided by 522 is 6 with a remainder of 488.
The next digit of our result is 6. 
Result so far: 3197.2796
Deduct 3132 from 3620 and we're left with 488.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4880, and continue the process.

Step 12:
522 goes into 4880 9 times with a remainder of 182.
The next digit of our result is 9. 
Result so far: 3197.27969
Deduct 4698 from 4880 and we're left with 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

Moving on to step 13:
The number 522 fits into 1820 3 times, leaving a remainder of 254.
The number 3 becomes the next digit in our result. 
Result so far: 3197.279693
Subtract 1566 from 1820 to get 254.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2540, and continue the process.

Step 14:
522 goes into 2540 4 times with a remainder of 452.
Use 4 as the next digit of our solution. 
Result so far: 3197.2796934
Subtract 2088 from 2540 to get 452.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4520, and continue the process.

On to step 15:
4520 divided by 522 is 8 with a remainder of 344.
Record the quotient 8 as the next digit in the result. 
Result so far: 3197.27969348
Subtracting 4176 from 4520 leaves us with 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

The final result is 3197.27969348 with a remainder of 3.44e-07.