Let's divide 87412789 by 858
Let's see how many times 858 fits into 87412789.

Going ahead to step 1:
858 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 858

Advancing to step 2:
When dividing 87 by 858, we get 0 with a remainder of 87.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 87 after subtracting 0 from 87.
Append the next digit (4) from the dividend to 87 and continue with: 874 / 858

Moving on to step 3:
874 divided by 858 is 1 with a remainder of 16.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 858 from 874 leaves us with 16.
Include the next digit (1) from the dividend after 16, then repeat: 161 / 858

Advancing to step 4:
858 can be fit into 161 0 times, resulting in a remainder of 161.
The next digit of our result is 0. 
Result so far: 10.0
If we subtract 0 from 161, we get 161.
Fetch the next digit (2) from the dividend, attach it to 161 and continue: 1612 / 858

Let's proceed to step 5:
The number 858 fits into 1612 1 times, leaving a remainder of 754.
Put 1 as the next digit of the answer. 
Result so far: 101.0
Subtracting 858 from 1612 leaves us with 754.
Include the next digit (7) from the dividend after 754, then repeat: 7547 / 858

Moving on to step 6:
When dividing 7547 by 858, we get 8 with a remainder of 683.
The number 8 becomes the next digit in our result. 
Result so far: 1018.0
If we take 6864 away from 7547, we end up with 683.
Fetch the next digit (8) from the dividend, attach it to 683 and continue: 6838 / 858

Step 7:
When dividing 6838 by 858, we get 7 with a remainder of 832.
The number 7 becomes the next digit in our result. 
Result so far: 10187.0
Subtracting 6006 from 6838 leaves us with 832.
Append the next digit (9) from the dividend to 832 and continue with: 8329 / 858

Advancing to step 8:
858 can be fit into 8329 9 times, resulting in a remainder of 607.
The number 9 becomes the next digit in our result. 
Result so far: 101879.0
Deduct 7722 from 8329 and we're left with 607.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6070, and continue the process.

Moving on to step 9:
When dividing 6070 by 858, we get 7 with a remainder of 64.
Record the quotient 7 as the next digit in the result. 
Result so far: 101879.7
Subtract 6006 from 6070 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 10:
858 can be fit into 640 0 times, resulting in a remainder of 640.
Use 0 as the next digit of our solution. 
Result so far: 101879.7
If we subtract 0 from 640, we get 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Moving on to step 11:
858 goes into 6400 7 times with a remainder of 394.
Record the quotient 7 as the next digit in the result. 
Result so far: 101879.707
If we take 6006 away from 6400, we end up with 394.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

Let's proceed to step 12:
The number 858 fits into 3940 4 times, leaving a remainder of 508.
Record the quotient 4 as the next digit in the result. 
Result so far: 101879.7074
If we subtract 3432 from 3940, we get 508.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5080, and continue the process.

Going ahead to step 13:
5080 divided by 858 is 5 with a remainder of 790.
The number 5 becomes the next digit in our result. 
Result so far: 101879.70745
Deduct 4290 from 5080 and we're left with 790.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7900, and continue the process.

Going ahead to step 14:
858 goes into 7900 9 times with a remainder of 178.
Put 9 as the next digit of the answer. 
Result so far: 101879.707459
The remainder is 178 after subtracting 7722 from 7900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

Advancing to step 15:
When dividing 1780 by 858, we get 2 with a remainder of 64.
Put 2 as the next digit of the answer. 
Result so far: 101879.7074592
If we take 1716 away from 1780, 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.

Moving on to step 16:
858 goes into 640 0 times with a remainder of 640.
The number 0 becomes the next digit in our result. 
Result so far: 101879.7074592
Subtracting 0 from 640 leaves us with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

The quotient of the division is 101879.7074592, and the remainder is 6.4e-07.