We're dividing 15994064 by 143 
We want to figure out the number of times 15994064 can be divided by 143.

Advancing to step 1:
143 can be fit into 1 0 times, resulting in a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 143

Let's proceed to step 2:
143 can be fit into 15 0 times, resulting in a remainder of 15.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 15 and we're left with 15.
Take the next digit (9) from the dividend and append it to 15, then repeat: 159 / 143

Let's proceed to step 3:
If we divide 159 by 143, we get 1 and a remainder of 16.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 143 from 159 and we're left with 16.
Bring next digit (9) of the dividend behind the 16 and repeat the process: 169 / 143

On to step 4:
The number 143 fits into 169 1 times, leaving a remainder of 26.
The next digit of our result is 1. 
Result so far: 11.0
The remainder is 26 after subtracting 143 from 169.
Take the next digit (4) from the dividend and append it to 26, then repeat: 264 / 143

Step 5:
143 can be fit into 264 1 times, resulting in a remainder of 121.
Put 1 as the next digit of the answer. 
Result so far: 111.0
The remainder is 121 after subtracting 143 from 264.
Include the next digit (0) from the dividend after 121, then repeat: 1210 / 143

Let's proceed to step 6:
The number 143 fits into 1210 8 times, leaving a remainder of 66.
The next digit of our result is 8. 
Result so far: 1118.0
Deduct 1144 from 1210 and we're left with 66.
Bring next digit (6) of the dividend behind the 66 and repeat the process: 666 / 143

Let's proceed to step 7:
When dividing 666 by 143, we get 4 with a remainder of 94.
The next digit of our result is 4. 
Result so far: 11184.0
If we subtract 572 from 666, we get 94.
Grab the next digit (4) from the dividend, add it to 94, then carry on: 944 / 143

Step 8:
143 can be fit into 944 6 times, resulting in a remainder of 86.
Put 6 as the next digit of the answer. 
Result so far: 111846.0
Subtracting 858 from 944 leaves us 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 9:
If we divide 860 by 143, we get 6 and a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 111846.6
Subtract 858 from 860 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 10:
143 goes into 20 0 times with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 111846.6
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 11:
If we divide 200 by 143, we get 1 and a remainder of 57.
The next digit of our result is 1. 
Result so far: 111846.601
The remainder is 57 after subtracting 143 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Going ahead to step 12:
143 can be fit into 570 3 times, resulting in a remainder of 141.
Use 3 as the next digit of our solution. 
Result so far: 111846.6013
Subtract 429 from 570 to get 141.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1410, and continue the process.

Let's proceed to step 13:
143 goes into 1410 9 times with a remainder of 123.
Record the quotient 9 as the next digit in the result. 
Result so far: 111846.60139
If we subtract 1287 from 1410, we get 123.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

Going ahead to step 14:
When dividing 1230 by 143, we get 8 with a remainder of 86.
Put 8 as the next digit of the answer. 
Result so far: 111846.601398
If we subtract 1144 from 1230, we get 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 15:
If we divide 860 by 143, we get 6 and a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 111846.6013986
Subtracting 858 from 860 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 16:
20 divided by 143 is 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 111846.6013986
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final outcome is 111846.6013986, with a leftover of 2e-08.