91684490 divided by 858 
The aim is to understand the frequency of 858 in 91684490.

Step 1:
858 can be fit into 9 0 times, resulting in a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Bring next digit (1) of the dividend behind the 9 and repeat the process: 91 / 858

Step 2:
When dividing 91 by 858, we get 0 with a remainder of 91.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 91 to get 91.
Fetch the next digit (6) from the dividend, attach it to 91 and continue: 916 / 858

Step 3:
The number 858 fits into 916 1 times, leaving a remainder of 58.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 58 after subtracting 858 from 916.
Include the next digit (8) from the dividend after 58, then repeat: 588 / 858

Moving on to step 4:
858 goes into 588 0 times with a remainder of 588.
The next digit of our result is 0. 
Result so far: 10.0
If we subtract 0 from 588, we get 588.
Bring next digit (4) of the dividend behind the 588 and repeat the process: 5884 / 858

Step 5:
5884 divided by 858 is 6 with a remainder of 736.
The number 6 becomes the next digit in our result. 
Result so far: 106.0
If we subtract 5148 from 5884, we get 736.
Bring next digit (4) of the dividend behind the 736 and repeat the process: 7364 / 858

Let's proceed to step 6:
7364 divided by 858 is 8 with a remainder of 500.
The next digit of our result is 8. 
Result so far: 1068.0
The remainder is 500 after subtracting 6864 from 7364.
Take the next digit (9) from the dividend and append it to 500, then repeat: 5009 / 858

Step 7:
The number 858 fits into 5009 5 times, leaving a remainder of 719.
Write down 5 as next digit of the result. 
Result so far: 10685.0
If we subtract 4290 from 5009, we get 719.
Bring next digit (0) of the dividend behind the 719 and repeat the process: 7190 / 858

Advancing to step 8:
If we divide 7190 by 858, we get 8 and a remainder of 326.
The number 8 becomes the next digit in our result. 
Result so far: 106858.0
If we take 6864 away from 7190, we end up 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 9:
858 goes into 3260 3 times with a remainder of 686.
The next digit of our result is 3. 
Result so far: 106858.3
Deduct 2574 from 3260 and we're left with 686.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6860, and continue the process.

Going ahead to step 10:
858 goes into 6860 7 times with a remainder of 854.
The next digit of our result is 7. 
Result so far: 106858.37
If we take 6006 away from 6860, we end up with 854.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8540, and continue the process.

On to step 11:
When dividing 8540 by 858, we get 9 with a remainder of 818.
Use 9 as the next digit of our solution. 
Result so far: 106858.379
If we take 7722 away from 8540, we end up 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.

Step 12:
858 can be fit into 8180 9 times, resulting in a remainder of 458.
Use 9 as the next digit of our solution. 
Result so far: 106858.3799
Deduct 7722 from 8180 and we're left with 458.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4580, and continue the process.

The quotient of the division is 106858.3799, and the remainder is 0.00458.