We're dividing 1962910 by 858 
The aim is to understand the frequency of 858 in 1962910.

On to step 1:
If we divide 1 by 858, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 858

Step 2:
If we divide 19 by 858, we get 0 and a remainder of 19.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 19, we end up with 19.
Include the next digit (6) from the dividend after 19, then repeat: 196 / 858

Let's proceed to step 3:
The number 858 fits into 196 0 times, leaving a remainder of 196.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 196 leaves us with 196.
Grab the next digit (2) from the dividend, add it to 196, then carry on: 1962 / 858

Step 4:
If we divide 1962 by 858, we get 2 and a remainder of 246.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Deduct 1716 from 1962 and we're left with 246.
Append the next digit (9) from the dividend to 246 and continue with: 2469 / 858

Going ahead to step 5:
The number 858 fits into 2469 2 times, leaving a remainder of 753.
Record the quotient 2 as the next digit in the result. 
Result so far: 22.0
If we take 1716 away from 2469, we end up with 753.
Bring next digit (1) of the dividend behind the 753 and repeat the process: 7531 / 858

Advancing to step 6:
858 goes into 7531 8 times with a remainder of 667.
Put 8 as the next digit of the answer. 
Result so far: 228.0
Subtract 6864 from 7531 to get 667.
Append the next digit (0) from the dividend to 667 and continue with: 6670 / 858

Moving on to step 7:
If we divide 6670 by 858, we get 7 and a remainder of 664.
Use 7 as the next digit of our solution. 
Result so far: 2287.0
If we subtract 6006 from 6670, we get 664.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6640, and continue the process.

Step 8:
When dividing 6640 by 858, we get 7 with a remainder of 634.
Use 7 as the next digit of our solution. 
Result so far: 2287.7
If we take 6006 away from 6640, we end up with 634.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6340, and continue the process.

Let's proceed to step 9:
858 goes into 6340 7 times with a remainder of 334.
Put 7 as the next digit of the answer. 
Result so far: 2287.77
If we subtract 6006 from 6340, we get 334.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3340, and continue the process.

The final outcome is 2287.77, with a leftover of 0.334.