80373375 divided by 858 
Our goal is to divide 80373375 by 858.

Going ahead to step 1:
8 divided by 858 is 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Include the next digit (0) from the dividend after 8, then repeat: 80 / 858

Going ahead to step 2:
If we divide 80 by 858, we get 0 and a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 80 and we're left with 80.
Fetch the next digit (3) from the dividend, attach it to 80 and continue: 803 / 858

Going ahead to step 3:
858 goes into 803 0 times with a remainder of 803.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 803 leaves us with 803.
Append the next digit (7) from the dividend to 803 and continue with: 8037 / 858

On to step 4:
The number 858 fits into 8037 9 times, leaving a remainder of 315.
Use 9 as the next digit of our solution. 
Result so far: 9.0
If we take 7722 away from 8037, we end up with 315.
Grab the next digit (3) from the dividend, add it to 315, then carry on: 3153 / 858

On to step 5:
When dividing 3153 by 858, we get 3 with a remainder of 579.
The number 3 becomes the next digit in our result. 
Result so far: 93.0
The remainder is 579 after subtracting 2574 from 3153.
Fetch the next digit (3) from the dividend, attach it to 579 and continue: 5793 / 858

Advancing to step 6:
858 can be fit into 5793 6 times, resulting in a remainder of 645.
Write down 6 as next digit of the result. 
Result so far: 936.0
If we subtract 5148 from 5793, we get 645.
Take the next digit (7) from the dividend and append it to 645, then repeat: 6457 / 858

Let's proceed to step 7:
858 goes into 6457 7 times with a remainder of 451.
The number 7 becomes the next digit in our result. 
Result so far: 9367.0
Deduct 6006 from 6457 and we're left with 451.
Grab the next digit (5) from the dividend, add it to 451, then carry on: 4515 / 858

Moving on to step 8:
When dividing 4515 by 858, we get 5 with a remainder of 225.
Record the quotient 5 as the next digit in the result. 
Result so far: 93675.0
If we take 4290 away from 4515, we end up with 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

Moving on to step 9:
2250 divided by 858 is 2 with a remainder of 534.
Use 2 as the next digit of our solution. 
Result so far: 93675.2
Subtracting 1716 from 2250 leaves us with 534.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5340, and continue the process.

Advancing to step 10:
858 goes into 5340 6 times with a remainder of 192.
Put 6 as the next digit of the answer. 
Result so far: 93675.26
If we take 5148 away from 5340, we end up with 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Let's proceed to step 11:
When dividing 1920 by 858, we get 2 with a remainder of 204.
Use 2 as the next digit of our solution. 
Result so far: 93675.262
Subtracting 1716 from 1920 leaves us with 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Let's proceed to step 12:
858 goes into 2040 2 times with a remainder of 324.
Use 2 as the next digit of our solution. 
Result so far: 93675.2622
Subtracting 1716 from 2040 leaves us with 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

After the division, we end up with 93675.2622 and a remainder of 0.00324.