Let's divide 4143709 by 166
Our goal is to divide 4143709 by 166.

Step 1:
166 goes into 4 0 times with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Take the next digit (1) from the dividend and append it to 4, then repeat: 41 / 166

Step 2:
166 goes into 41 0 times with a remainder of 41.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 41 and we're left with 41.
Fetch the next digit (4) from the dividend, attach it to 41 and continue: 414 / 166

On to step 3:
The number 166 fits into 414 2 times, leaving a remainder of 82.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 332 from 414 to get 82.
Append the next digit (3) from the dividend to 82 and continue with: 823 / 166

Going ahead to step 4:
The number 166 fits into 823 4 times, leaving a remainder of 159.
Use 4 as the next digit of our solution. 
Result so far: 24.0
Subtracting 664 from 823 leaves us with 159.
Grab the next digit (7) from the dividend, add it to 159, then carry on: 1597 / 166

Step 5:
If we divide 1597 by 166, we get 9 and a remainder of 103.
Put 9 as the next digit of the answer. 
Result so far: 249.0
Subtract 1494 from 1597 to get 103.
Fetch the next digit (0) from the dividend, attach it to 103 and continue: 1030 / 166

Advancing to step 6:
If we divide 1030 by 166, we get 6 and a remainder of 34.
Use 6 as the next digit of our solution. 
Result so far: 2496.0
If we subtract 996 from 1030, we get 34.
Bring next digit (9) of the dividend behind the 34 and repeat the process: 349 / 166

Advancing to step 7:
166 can be fit into 349 2 times, resulting in a remainder of 17.
Record the quotient 2 as the next digit in the result. 
Result so far: 24962.0
The remainder is 17 after subtracting 332 from 349.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 8:
If we divide 170 by 166, we get 1 and a remainder of 4.
Write down 1 as next digit of the result. 
Result so far: 24962.1
Deduct 166 from 170 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 9:
If we divide 40 by 166, we get 0 and a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 24962.1
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 10:
The number 166 fits into 400 2 times, leaving a remainder of 68.
Write down 2 as next digit of the result. 
Result so far: 24962.102
Deduct 332 from 400 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Moving on to step 11:
The number 166 fits into 680 4 times, leaving a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 24962.1024
If we subtract 664 from 680, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 12:
166 can be fit into 160 0 times, resulting in a remainder of 160.
The next digit of our result is 0. 
Result so far: 24962.1024
If we take 0 away from 160, we end up with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Going ahead to step 13:
1600 divided by 166 is 9 with a remainder of 106.
The number 9 becomes the next digit in our result. 
Result so far: 24962.102409
If we subtract 1494 from 1600, we get 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Going ahead to step 14:
166 can be fit into 1060 6 times, resulting in a remainder of 64.
The next digit of our result is 6. 
Result so far: 24962.1024096
If we take 996 away from 1060, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 15:
640 divided by 166 is 3 with a remainder of 142.
The number 3 becomes the next digit in our result. 
Result so far: 24962.10240963
Subtract 498 from 640 to get 142.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

The final outcome is 24962.10240963, with a leftover of 1.42e-07.