65353609 ÷ 858 
The aim is to understand the frequency of 858 in 65353609.

Moving on to step 1:
When dividing 6 by 858, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Append the next digit (5) from the dividend to 6 and continue with: 65 / 858

Advancing to step 2:
65 divided by 858 is 0 with a remainder of 65.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 65 to get 65.
Append the next digit (3) from the dividend to 65 and continue with: 653 / 858

On to step 3:
858 can be fit into 653 0 times, resulting in a remainder of 653.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 653 to get 653.
Grab the next digit (5) from the dividend, add it to 653, then carry on: 6535 / 858

Going ahead to step 4:
6535 divided by 858 is 7 with a remainder of 529.
The next digit of our result is 7. 
Result so far: 7.0
If we take 6006 away from 6535, we end up with 529.
Take the next digit (3) from the dividend and append it to 529, then repeat: 5293 / 858

Moving on to step 5:
5293 divided by 858 is 6 with a remainder of 145.
Write down 6 as next digit of the result. 
Result so far: 76.0
The remainder is 145 after subtracting 5148 from 5293.
Append the next digit (6) from the dividend to 145 and continue with: 1456 / 858

On to step 6:
858 can be fit into 1456 1 times, resulting in a remainder of 598.
Put 1 as the next digit of the answer. 
Result so far: 761.0
If we take 858 away from 1456, we end up with 598.
Take the next digit (0) from the dividend and append it to 598, then repeat: 5980 / 858

Step 7:
5980 divided by 858 is 6 with a remainder of 832.
Put 6 as the next digit of the answer. 
Result so far: 7616.0
The remainder is 832 after subtracting 5148 from 5980.
Append the next digit (9) from the dividend to 832 and continue with: 8329 / 858

Step 8:
When dividing 8329 by 858, we get 9 with a remainder of 607.
Use 9 as the next digit of our solution. 
Result so far: 76169.0
Subtract 7722 from 8329 to get 607.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6070, and continue the process.

Advancing to step 9:
When dividing 6070 by 858, we get 7 with a remainder of 64.
Record the quotient 7 as the next digit in the result. 
Result so far: 76169.7
If we subtract 6006 from 6070, we get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 10:
858 goes into 640 0 times with a remainder of 640.
Write down 0 as next digit of the result. 
Result so far: 76169.7
If we subtract 0 from 640, we get 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Step 11:
When dividing 6400 by 858, we get 7 with a remainder of 394.
The next digit of our result is 7. 
Result so far: 76169.707
If we take 6006 away from 6400, we end up with 394.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

Advancing to step 12:
When dividing 3940 by 858, we get 4 with a remainder of 508.
Write down 4 as next digit of the result. 
Result so far: 76169.7074
Deduct 3432 from 3940 and we're left with 508.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5080, and continue the process.

Going ahead to step 13:
858 goes into 5080 5 times with a remainder of 790.
Put 5 as the next digit of the answer. 
Result so far: 76169.70745
If we subtract 4290 from 5080, we get 790.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7900, and continue the process.

Advancing to step 14:
The number 858 fits into 7900 9 times, leaving a remainder of 178.
Record the quotient 9 as the next digit in the result. 
Result so far: 76169.707459
The remainder is 178 after subtracting 7722 from 7900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

Moving on to step 15:
858 goes into 1780 2 times with a remainder of 64.
Put 2 as the next digit of the answer. 
Result so far: 76169.7074592
If we take 1716 away from 1780, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 16:
858 goes into 640 0 times with a remainder of 640.
The next digit of our result is 0. 
Result so far: 76169.7074592
The remainder is 640 after subtracting 0 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

In conclusion, the division gives 76169.7074592 with a balance of 6.4e-07.