23823689 ÷ 166 
We're looking to find how many times 166 goes into 23823689.

On to step 1:
166 goes into 2 0 times with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Take the next digit (3) from the dividend and append it to 2, then repeat: 23 / 166

Advancing to step 2:
If we divide 23 by 166, we get 0 and a remainder of 23.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 23 and we're left with 23.
Grab the next digit (8) from the dividend, add it to 23, then carry on: 238 / 166

Going ahead to step 3:
238 divided by 166 is 1 with a remainder of 72.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 166 from 238, we get 72.
Bring next digit (2) of the dividend behind the 72 and repeat the process: 722 / 166

Going ahead to step 4:
166 goes into 722 4 times with a remainder of 58.
Use 4 as the next digit of our solution. 
Result so far: 14.0
Subtracting 664 from 722 leaves us with 58.
Append the next digit (3) from the dividend to 58 and continue with: 583 / 166

Going ahead to step 5:
The number 166 fits into 583 3 times, leaving a remainder of 85.
Write down 3 as next digit of the result. 
Result so far: 143.0
If we take 498 away from 583, we end up with 85.
Append the next digit (6) from the dividend to 85 and continue with: 856 / 166

Advancing to step 6:
When dividing 856 by 166, we get 5 with a remainder of 26.
Use 5 as the next digit of our solution. 
Result so far: 1435.0
Deduct 830 from 856 and we're left with 26.
Append the next digit (8) from the dividend to 26 and continue with: 268 / 166

Going ahead to step 7:
The number 166 fits into 268 1 times, leaving a remainder of 102.
Use 1 as the next digit of our solution. 
Result so far: 14351.0
Subtract 166 from 268 to get 102.
Fetch the next digit (9) from the dividend, attach it to 102 and continue: 1029 / 166

Step 8:
166 goes into 1029 6 times with a remainder of 33.
The number 6 becomes the next digit in our result. 
Result so far: 143516.0
Deduct 996 from 1029 and we're left with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Let's proceed to step 9:
If we divide 330 by 166, we get 1 and a remainder of 164.
The number 1 becomes the next digit in our result. 
Result so far: 143516.1
Deduct 166 from 330 and we're left with 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

Step 10:
The number 166 fits into 1640 9 times, leaving a remainder of 146.
Use 9 as the next digit of our solution. 
Result so far: 143516.19
If we subtract 1494 from 1640, we get 146.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1460, and continue the process.

Going ahead to step 11:
When dividing 1460 by 166, we get 8 with a remainder of 132.
Put 8 as the next digit of the answer. 
Result so far: 143516.198
Deduct 1328 from 1460 and we're left with 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Step 12:
When dividing 1320 by 166, we get 7 with a remainder of 158.
The number 7 becomes the next digit in our result. 
Result so far: 143516.1987
Subtract 1162 from 1320 to get 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

Step 13:
166 can be fit into 1580 9 times, resulting in a remainder of 86.
The next digit of our result is 9. 
Result so far: 143516.19879
If we take 1494 away from 1580, we end up with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Going ahead to step 14:
166 can be fit into 860 5 times, resulting in a remainder of 30.
The number 5 becomes the next digit in our result. 
Result so far: 143516.198795
Deduct 830 from 860 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 15:
The number 166 fits into 300 1 times, leaving a remainder of 134.
The number 1 becomes the next digit in our result. 
Result so far: 143516.1987951
The remainder is 134 after subtracting 166 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Going ahead to step 16:
1340 divided by 166 is 8 with a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 143516.19879518
The remainder is 12 after subtracting 1328 from 1340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The final outcome is 143516.19879518, with a leftover of 1.2e-08.