We look at the division of 73945244 by 858 
Let's see how many times 858 fits into 73945244.

Going ahead to step 1:
If we divide 7 by 858, we get 0 and a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Bring next digit (3) of the dividend behind the 7 and repeat the process: 73 / 858

On to step 2:
If we divide 73 by 858, we get 0 and a remainder of 73.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 73 and we're left with 73.
Append the next digit (9) from the dividend to 73 and continue with: 739 / 858

Step 3:
858 goes into 739 0 times with a remainder of 739.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 739 after subtracting 0 from 739.
Fetch the next digit (4) from the dividend, attach it to 739 and continue: 7394 / 858

Advancing to step 4:
7394 divided by 858 is 8 with a remainder of 530.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Deduct 6864 from 7394 and we're left with 530.
Take the next digit (5) from the dividend and append it to 530, then repeat: 5305 / 858

Let's proceed to step 5:
If we divide 5305 by 858, we get 6 and a remainder of 157.
The next digit of our result is 6. 
Result so far: 86.0
Subtract 5148 from 5305 to get 157.
Include the next digit (2) from the dividend after 157, then repeat: 1572 / 858

Going ahead to step 6:
If we divide 1572 by 858, we get 1 and a remainder of 714.
The next digit of our result is 1. 
Result so far: 861.0
If we subtract 858 from 1572, we get 714.
Fetch the next digit (4) from the dividend, attach it to 714 and continue: 7144 / 858

On to step 7:
When dividing 7144 by 858, we get 8 with a remainder of 280.
The next digit of our result is 8. 
Result so far: 8618.0
Subtracting 6864 from 7144 leaves us with 280.
Append the next digit (4) from the dividend to 280 and continue with: 2804 / 858

Let's proceed to step 8:
When dividing 2804 by 858, we get 3 with a remainder of 230.
Use 3 as the next digit of our solution. 
Result so far: 86183.0
The remainder is 230 after subtracting 2574 from 2804.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Step 9:
2300 divided by 858 is 2 with a remainder of 584.
Use 2 as the next digit of our solution. 
Result so far: 86183.2
Subtracting 1716 from 2300 leaves us with 584.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5840, and continue the process.

Going ahead to step 10:
858 goes into 5840 6 times with a remainder of 692.
The next digit of our result is 6. 
Result so far: 86183.26
Deduct 5148 from 5840 and we're left with 692.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6920, and continue the process.

Moving on to step 11:
6920 divided by 858 is 8 with a remainder of 56.
Put 8 as the next digit of the answer. 
Result so far: 86183.268
If we subtract 6864 from 6920, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Going ahead to step 12:
560 divided by 858 is 0 with a remainder of 560.
Put 0 as the next digit of the answer. 
Result so far: 86183.268
The remainder is 560 after subtracting 0 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Step 13:
5600 divided by 858 is 6 with a remainder of 452.
The next digit of our result is 6. 
Result so far: 86183.26806
Subtract 5148 from 5600 to get 452.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4520, and continue the process.

Step 14:
When dividing 4520 by 858, we get 5 with a remainder of 230.
Write down 5 as next digit of the result. 
Result so far: 86183.268065
Subtract 4290 from 4520 to get 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Advancing to step 15:
When dividing 2300 by 858, we get 2 with a remainder of 584.
Use 2 as the next digit of our solution. 
Result so far: 86183.2680652
If we take 1716 away from 2300, we end up with 584.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5840, and continue the process.

Step 16:
858 goes into 5840 6 times with a remainder of 692.
The next digit of our result is 6. 
Result so far: 86183.26806526
Subtract 5148 from 5840 to get 692.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6920, and continue the process.

The final outcome is 86183.26806526, with a leftover of 6.92e-07.