We look at the division of 73564673 by 858 
The aim is to understand the frequency of 858 in 73564673.

Going ahead to step 1:
If we divide 7 by 858, we get 0 and a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Include the next digit (3) from the dividend after 7, then repeat: 73 / 858

Going ahead to step 2:
The number 858 fits into 73 0 times, leaving a remainder of 73.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 73, we get 73.
Grab the next digit (5) from the dividend, add it to 73, then carry on: 735 / 858

Going ahead to step 3:
The number 858 fits into 735 0 times, leaving a remainder of 735.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 735 to get 735.
Include the next digit (6) from the dividend after 735, then repeat: 7356 / 858

On to step 4:
7356 divided by 858 is 8 with a remainder of 492.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Deduct 6864 from 7356 and we're left with 492.
Take the next digit (4) from the dividend and append it to 492, then repeat: 4924 / 858

Step 5:
When dividing 4924 by 858, we get 5 with a remainder of 634.
Record the quotient 5 as the next digit in the result. 
Result so far: 85.0
If we take 4290 away from 4924, we end up with 634.
Include the next digit (6) from the dividend after 634, then repeat: 6346 / 858

Step 6:
6346 divided by 858 is 7 with a remainder of 340.
The next digit of our result is 7. 
Result so far: 857.0
The remainder is 340 after subtracting 6006 from 6346.
Fetch the next digit (7) from the dividend, attach it to 340 and continue: 3407 / 858

On to step 7:
If we divide 3407 by 858, we get 3 and a remainder of 833.
The number 3 becomes the next digit in our result. 
Result so far: 8573.0
If we subtract 2574 from 3407, we get 833.
Bring next digit (3) of the dividend behind the 833 and repeat the process: 8333 / 858

Step 8:
8333 divided by 858 is 9 with a remainder of 611.
Record the quotient 9 as the next digit in the result. 
Result so far: 85739.0
Deduct 7722 from 8333 and we're left with 611.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6110, and continue the process.

Moving on to step 9:
When dividing 6110 by 858, we get 7 with a remainder of 104.
Write down 7 as next digit of the result. 
Result so far: 85739.7
If we take 6006 away from 6110, we end up with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Advancing to step 10:
858 goes into 1040 1 times with a remainder of 182.
The number 1 becomes the next digit in our result. 
Result so far: 85739.71
If we take 858 away from 1040, we end up with 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

On to step 11:
1820 divided by 858 is 2 with a remainder of 104.
Put 2 as the next digit of the answer. 
Result so far: 85739.712
If we subtract 1716 from 1820, we get 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Moving on to step 12:
1040 divided by 858 is 1 with a remainder of 182.
Record the quotient 1 as the next digit in the result. 
Result so far: 85739.7121
If we subtract 858 from 1040, we get 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

Advancing to step 13:
If we divide 1820 by 858, we get 2 and a remainder of 104.
Write down 2 as next digit of the result. 
Result so far: 85739.71212
The remainder is 104 after subtracting 1716 from 1820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Let's proceed to step 14:
The number 858 fits into 1040 1 times, leaving a remainder of 182.
Put 1 as the next digit of the answer. 
Result so far: 85739.712121
Subtract 858 from 1040 to get 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

Let's proceed to step 15:
The number 858 fits into 1820 2 times, leaving a remainder of 104.
The next digit of our result is 2. 
Result so far: 85739.7121212
Subtracting 1716 from 1820 leaves us with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Going ahead to step 16:
If we divide 1040 by 858, we get 1 and a remainder of 182.
Use 1 as the next digit of our solution. 
Result so far: 85739.71212121
If we take 858 away from 1040, we end up with 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

Our division results in 85739.71212121 with a remaining 1.82e-07.