We're dividing 72141875 by 858 
Our goal is to divide 72141875 by 858.

Going ahead to step 1:
The number 858 fits into 7 0 times, leaving a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Append the next digit (2) from the dividend to 7 and continue with: 72 / 858

Advancing to step 2:
If we divide 72 by 858, we get 0 and a remainder of 72.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 72 after subtracting 0 from 72.
Include the next digit (1) from the dividend after 72, then repeat: 721 / 858

Advancing to step 3:
The number 858 fits into 721 0 times, leaving a remainder of 721.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 721 and we're left with 721.
Include the next digit (4) from the dividend after 721, then repeat: 7214 / 858

Step 4:
858 can be fit into 7214 8 times, resulting in a remainder of 350.
The next digit of our result is 8. 
Result so far: 8.0
Subtracting 6864 from 7214 leaves us with 350.
Take the next digit (1) from the dividend and append it to 350, then repeat: 3501 / 858

Advancing to step 5:
858 goes into 3501 4 times with a remainder of 69.
The next digit of our result is 4. 
Result so far: 84.0
If we subtract 3432 from 3501, we get 69.
Include the next digit (8) from the dividend after 69, then repeat: 698 / 858

Step 6:
If we divide 698 by 858, we get 0 and a remainder of 698.
The number 0 becomes the next digit in our result. 
Result so far: 840.0
Subtract 0 from 698 to get 698.
Take the next digit (7) from the dividend and append it to 698, then repeat: 6987 / 858

Going ahead to step 7:
When dividing 6987 by 858, we get 8 with a remainder of 123.
Record the quotient 8 as the next digit in the result. 
Result so far: 8408.0
The remainder is 123 after subtracting 6864 from 6987.
Take the next digit (5) from the dividend and append it to 123, then repeat: 1235 / 858

Going ahead to step 8:
The number 858 fits into 1235 1 times, leaving a remainder of 377.
Put 1 as the next digit of the answer. 
Result so far: 84081.0
Subtracting 858 from 1235 leaves us with 377.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3770, and continue the process.

Moving on to step 9:
858 goes into 3770 4 times with a remainder of 338.
Put 4 as the next digit of the answer. 
Result so far: 84081.4
If we subtract 3432 from 3770, we get 338.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3380, and continue the process.

Going ahead to step 10:
858 can be fit into 3380 3 times, resulting in a remainder of 806.
The next digit of our result is 3. 
Result so far: 84081.43
The remainder is 806 after subtracting 2574 from 3380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8060, and continue the process.

Advancing to step 11:
The number 858 fits into 8060 9 times, leaving a remainder of 338.
The next digit of our result is 9. 
Result so far: 84081.439
Deduct 7722 from 8060 and we're left with 338.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3380, and continue the process.

On to step 12:
If we divide 3380 by 858, we get 3 and a remainder of 806.
The next digit of our result is 3. 
Result so far: 84081.4393
If we subtract 2574 from 3380, we get 806.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8060, and continue the process.

Advancing to step 13:
858 goes into 8060 9 times with a remainder of 338.
The number 9 becomes the next digit in our result. 
Result so far: 84081.43939
Deduct 7722 from 8060 and we're left with 338.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3380, and continue the process.

On to step 14:
When dividing 3380 by 858, we get 3 with a remainder of 806.
Put 3 as the next digit of the answer. 
Result so far: 84081.439393
Deduct 2574 from 3380 and we're left with 806.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8060, and continue the process.

Step 15:
If we divide 8060 by 858, we get 9 and a remainder of 338.
Put 9 as the next digit of the answer. 
Result so far: 84081.4393939
Subtract 7722 from 8060 to get 338.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3380, and continue the process.

Going ahead to step 16:
858 goes into 3380 3 times with a remainder of 806.
Write down 3 as next digit of the result. 
Result so far: 84081.43939393
If we take 2574 away from 3380, we end up with 806.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8060, and continue the process.

The final result is 84081.43939393 with a remainder of 8.06e-07.