Let's divide 40643420 by 858
The aim is to understand the frequency of 858 in 40643420.

Let's proceed to step 1:
The number 858 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 858

Step 2:
858 goes into 40 0 times with a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 40 after subtracting 0 from 40.
Fetch the next digit (6) from the dividend, attach it to 40 and continue: 406 / 858

Step 3:
406 divided by 858 is 0 with a remainder of 406.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 406 after subtracting 0 from 406.
Grab the next digit (4) from the dividend, add it to 406, then carry on: 4064 / 858

Advancing to step 4:
858 can be fit into 4064 4 times, resulting in a remainder of 632.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtracting 3432 from 4064 leaves us with 632.
Take the next digit (3) from the dividend and append it to 632, then repeat: 6323 / 858

Let's proceed to step 5:
The number 858 fits into 6323 7 times, leaving a remainder of 317.
Use 7 as the next digit of our solution. 
Result so far: 47.0
If we take 6006 away from 6323, we end up with 317.
Include the next digit (4) from the dividend after 317, then repeat: 3174 / 858

Step 6:
858 goes into 3174 3 times with a remainder of 600.
The number 3 becomes the next digit in our result. 
Result so far: 473.0
Deduct 2574 from 3174 and we're left with 600.
Grab the next digit (2) from the dividend, add it to 600, then carry on: 6002 / 858

On to step 7:
If we divide 6002 by 858, we get 6 and a remainder of 854.
Record the quotient 6 as the next digit in the result. 
Result so far: 4736.0
If we subtract 5148 from 6002, we get 854.
Fetch the next digit (0) from the dividend, attach it to 854 and continue: 8540 / 858

Let's proceed to step 8:
858 can be fit into 8540 9 times, resulting in a remainder of 818.
The number 9 becomes the next digit in our result. 
Result so far: 47369.0
Deduct 7722 from 8540 and we're left with 818.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8180, and continue the process.

Moving on to step 9:
When dividing 8180 by 858, we get 9 with a remainder of 458.
Write down 9 as next digit of the result. 
Result so far: 47369.9
Subtract 7722 from 8180 to get 458.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4580, and continue the process.

On to step 10:
858 goes into 4580 5 times with a remainder of 290.
Record the quotient 5 as the next digit in the result. 
Result so far: 47369.95
If we subtract 4290 from 4580, we get 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Moving on to step 11:
2900 divided by 858 is 3 with a remainder of 326.
Record the quotient 3 as the next digit in the result. 
Result so far: 47369.953
Subtracting 2574 from 2900 leaves us with 326.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3260, and continue the process.

Let's proceed to step 12:
If we divide 3260 by 858, we get 3 and a remainder of 686.
Write down 3 as next digit of the result. 
Result so far: 47369.9533
If we subtract 2574 from 3260, we get 686.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6860, and continue the process.

After the division, we end up with 47369.9533 and a remainder of 0.00686.