51430770 ÷ 858 
The aim is to understand the frequency of 858 in 51430770.

Moving on to step 1:
858 can be fit into 5 0 times, resulting in a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 858

Going ahead to step 2:
51 divided by 858 is 0 with a remainder of 51.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 51 to get 51.
Include the next digit (4) from the dividend after 51, then repeat: 514 / 858

On to step 3:
If we divide 514 by 858, we get 0 and a remainder of 514.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 514, we get 514.
Bring next digit (3) of the dividend behind the 514 and repeat the process: 5143 / 858

Step 4:
858 goes into 5143 5 times with a remainder of 853.
The next digit of our result is 5. 
Result so far: 5.0
Subtract 4290 from 5143 to get 853.
Bring next digit (0) of the dividend behind the 853 and repeat the process: 8530 / 858

Going ahead to step 5:
The number 858 fits into 8530 9 times, leaving a remainder of 808.
Put 9 as the next digit of the answer. 
Result so far: 59.0
Deduct 7722 from 8530 and we're left with 808.
Append the next digit (7) from the dividend to 808 and continue with: 8087 / 858

On to step 6:
8087 divided by 858 is 9 with a remainder of 365.
The number 9 becomes the next digit in our result. 
Result so far: 599.0
Subtracting 7722 from 8087 leaves us with 365.
Fetch the next digit (7) from the dividend, attach it to 365 and continue: 3657 / 858

Advancing to step 7:
858 goes into 3657 4 times with a remainder of 225.
The number 4 becomes the next digit in our result. 
Result so far: 5994.0
Deduct 3432 from 3657 and we're left with 225.
Append the next digit (0) from the dividend to 225 and continue with: 2250 / 858

Advancing to step 8:
When dividing 2250 by 858, we get 2 with a remainder of 534.
Write down 2 as next digit of the result. 
Result so far: 59942.0
Subtracting 1716 from 2250 leaves us with 534.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5340, and continue the process.

On to step 9:
5340 divided by 858 is 6 with a remainder of 192.
Record the quotient 6 as the next digit in the result. 
Result so far: 59942.6
Deduct 5148 from 5340 and we're left with 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Advancing to step 10:
If we divide 1920 by 858, we get 2 and a remainder of 204.
The number 2 becomes the next digit in our result. 
Result so far: 59942.62
The remainder is 204 after subtracting 1716 from 1920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Step 11:
858 can be fit into 2040 2 times, resulting in a remainder of 324.
The number 2 becomes the next digit in our result. 
Result so far: 59942.622
The remainder is 324 after subtracting 1716 from 2040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

The quotient of the division is 59942.622, and the remainder is 0.0324.