58879942 divided by 858 
The aim is to understand the frequency of 858 in 58879942.

Step 1:
858 goes into 5 0 times with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Grab the next digit (8) from the dividend, add it to 5, then carry on: 58 / 858

On to step 2:
858 can be fit into 58 0 times, resulting in a remainder of 58.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 58 and we're left with 58.
Take the next digit (8) from the dividend and append it to 58, then repeat: 588 / 858

Step 3:
When dividing 588 by 858, we get 0 with a remainder of 588.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 588, we end up with 588.
Include the next digit (7) from the dividend after 588, then repeat: 5887 / 858

Going ahead to step 4:
858 goes into 5887 6 times with a remainder of 739.
Put 6 as the next digit of the answer. 
Result so far: 6.0
If we subtract 5148 from 5887, we get 739.
Fetch the next digit (9) from the dividend, attach it to 739 and continue: 7399 / 858

Step 5:
858 goes into 7399 8 times with a remainder of 535.
The number 8 becomes the next digit in our result. 
Result so far: 68.0
If we subtract 6864 from 7399, we get 535.
Include the next digit (9) from the dividend after 535, then repeat: 5359 / 858

Step 6:
The number 858 fits into 5359 6 times, leaving a remainder of 211.
The next digit of our result is 6. 
Result so far: 686.0
Subtracting 5148 from 5359 leaves us with 211.
Grab the next digit (4) from the dividend, add it to 211, then carry on: 2114 / 858

Let's proceed to step 7:
2114 divided by 858 is 2 with a remainder of 398.
Use 2 as the next digit of our solution. 
Result so far: 6862.0
If we subtract 1716 from 2114, we get 398.
Take the next digit (2) from the dividend and append it to 398, then repeat: 3982 / 858

Going ahead to step 8:
858 goes into 3982 4 times with a remainder of 550.
Put 4 as the next digit of the answer. 
Result so far: 68624.0
Deduct 3432 from 3982 and we're left with 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5500, and continue the process.

Going ahead to step 9:
If we divide 5500 by 858, we get 6 and a remainder of 352.
Write down 6 as next digit of the result. 
Result so far: 68624.6
If we subtract 5148 from 5500, we get 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Moving on to step 10:
3520 divided by 858 is 4 with a remainder of 88.
Write down 4 as next digit of the result. 
Result so far: 68624.64
Subtracting 3432 from 3520 leaves us with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

On to step 11:
880 divided by 858 is 1 with a remainder of 22.
Put 1 as the next digit of the answer. 
Result so far: 68624.641
If we take 858 away from 880, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 12:
858 goes into 220 0 times with a remainder of 220.
Put 0 as the next digit of the answer. 
Result so far: 68624.641
If we subtract 0 from 220, we get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Let's proceed to step 13:
858 can be fit into 2200 2 times, resulting in a remainder of 484.
Use 2 as the next digit of our solution. 
Result so far: 68624.64102
Subtract 1716 from 2200 to get 484.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4840, and continue the process.

Going ahead to step 14:
858 goes into 4840 5 times with a remainder of 550.
Use 5 as the next digit of our solution. 
Result so far: 68624.641025
If we take 4290 away from 4840, we end up with 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5500, and continue the process.

Let's proceed to step 15:
When dividing 5500 by 858, we get 6 with a remainder of 352.
The next digit of our result is 6. 
Result so far: 68624.6410256
Subtract 5148 from 5500 to get 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Let's proceed to step 16:
858 can be fit into 3520 4 times, resulting in a remainder of 88.
Write down 4 as next digit of the result. 
Result so far: 68624.64102564
If we take 3432 away from 3520, we end up with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

The final result is 68624.64102564 with a remainder of 8.8e-08.