Let's divide 72143844 by 858
We want to figure out the number of times 72143844 can be divided by 858.

Step 1:
858 goes into 7 0 times with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Take the next digit (2) from the dividend and append it to 7, then repeat: 72 / 858

Let's proceed to step 2:
858 goes into 72 0 times with a remainder of 72.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 72 and we're left with 72.
Include the next digit (1) from the dividend after 72, then repeat: 721 / 858

Step 3:
858 can be fit into 721 0 times, resulting in a remainder of 721.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 721 to get 721.
Include the next digit (4) from the dividend after 721, then repeat: 7214 / 858

Step 4:
The number 858 fits into 7214 8 times, leaving a remainder of 350.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtract 6864 from 7214 to get 350.
Append the next digit (3) from the dividend to 350 and continue with: 3503 / 858

Going ahead to step 5:
858 can be fit into 3503 4 times, resulting in a remainder of 71.
Use 4 as the next digit of our solution. 
Result so far: 84.0
If we subtract 3432 from 3503, we get 71.
Fetch the next digit (8) from the dividend, attach it to 71 and continue: 718 / 858

Advancing to step 6:
718 divided by 858 is 0 with a remainder of 718.
Write down 0 as next digit of the result. 
Result so far: 840.0
Subtract 0 from 718 to get 718.
Fetch the next digit (4) from the dividend, attach it to 718 and continue: 7184 / 858

Moving on to step 7:
858 can be fit into 7184 8 times, resulting in a remainder of 320.
Put 8 as the next digit of the answer. 
Result so far: 8408.0
Deduct 6864 from 7184 and we're left with 320.
Fetch the next digit (4) from the dividend, attach it to 320 and continue: 3204 / 858

Let's proceed to step 8:
When dividing 3204 by 858, we get 3 with a remainder of 630.
Use 3 as the next digit of our solution. 
Result so far: 84083.0
Subtracting 2574 from 3204 leaves us with 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

Going ahead to step 9:
The number 858 fits into 6300 7 times, leaving a remainder of 294.
Write down 7 as next digit of the result. 
Result so far: 84083.7
Subtracting 6006 from 6300 leaves us with 294.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2940, and continue the process.

On to step 10:
858 can be fit into 2940 3 times, resulting in a remainder of 366.
The next digit of our result is 3. 
Result so far: 84083.73
Subtracting 2574 from 2940 leaves us with 366.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3660, and continue the process.

Advancing to step 11:
If we divide 3660 by 858, we get 4 and a remainder of 228.
Use 4 as the next digit of our solution. 
Result so far: 84083.734
The remainder is 228 after subtracting 3432 from 3660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

Going ahead to step 12:
858 can be fit into 2280 2 times, resulting in a remainder of 564.
The next digit of our result is 2. 
Result so far: 84083.7342
If we subtract 1716 from 2280, we get 564.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5640, and continue the process.

Let's proceed to step 13:
When dividing 5640 by 858, we get 6 with a remainder of 492.
The number 6 becomes the next digit in our result. 
Result so far: 84083.73426
Deduct 5148 from 5640 and we're left with 492.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4920, and continue the process.

Let's proceed to step 14:
When dividing 4920 by 858, we get 5 with a remainder of 630.
Use 5 as the next digit of our solution. 
Result so far: 84083.734265
If we subtract 4290 from 4920, we get 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

Step 15:
When dividing 6300 by 858, we get 7 with a remainder of 294.
The number 7 becomes the next digit in our result. 
Result so far: 84083.7342657
If we subtract 6006 from 6300, we get 294.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2940, and continue the process.

On to step 16:
858 goes into 2940 3 times with a remainder of 366.
Write down 3 as next digit of the result. 
Result so far: 84083.73426573
Deduct 2574 from 2940 and we're left with 366.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3660, and continue the process.

The quotient of the division is 84083.73426573, and the remainder is 3.66e-07.