Let's divide 76712172 by 858
The aim is to understand the frequency of 858 in 76712172.

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 subtract 0 from 7, we get 7.
Append the next digit (6) from the dividend to 7 and continue with: 76 / 858

Advancing to step 2:
858 can be fit into 76 0 times, resulting in a remainder of 76.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 76 to get 76.
Bring next digit (7) of the dividend behind the 76 and repeat the process: 767 / 858

Going ahead to step 3:
767 divided by 858 is 0 with a remainder of 767.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 767, we end up with 767.
Take the next digit (1) from the dividend and append it to 767, then repeat: 7671 / 858

Let's proceed to step 4:
The number 858 fits into 7671 8 times, leaving a remainder of 807.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtracting 6864 from 7671 leaves us with 807.
Append the next digit (2) from the dividend to 807 and continue with: 8072 / 858

Moving on to step 5:
8072 divided by 858 is 9 with a remainder of 350.
Put 9 as the next digit of the answer. 
Result so far: 89.0
Subtracting 7722 from 8072 leaves us with 350.
Append the next digit (1) from the dividend to 350 and continue with: 3501 / 858

Moving on to step 6:
858 goes into 3501 4 times with a remainder of 69.
The next digit of our result is 4. 
Result so far: 894.0
Deduct 3432 from 3501 and we're left with 69.
Include the next digit (7) from the dividend after 69, then repeat: 697 / 858

Let's proceed to step 7:
If we divide 697 by 858, we get 0 and a remainder of 697.
The next digit of our result is 0. 
Result so far: 8940.0
If we subtract 0 from 697, we get 697.
Append the next digit (2) from the dividend to 697 and continue with: 6972 / 858

Advancing to step 8:
If we divide 6972 by 858, we get 8 and a remainder of 108.
Use 8 as the next digit of our solution. 
Result so far: 89408.0
Deduct 6864 from 6972 and we're left with 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Let's proceed to step 9:
1080 divided by 858 is 1 with a remainder of 222.
The next digit of our result is 1. 
Result so far: 89408.1
Subtract 858 from 1080 to get 222.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2220, and continue the process.

Let's proceed to step 10:
When dividing 2220 by 858, we get 2 with a remainder of 504.
The next digit of our result is 2. 
Result so far: 89408.12
If we subtract 1716 from 2220, we get 504.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

Going ahead to step 11:
858 goes into 5040 5 times with a remainder of 750.
The number 5 becomes the next digit in our result. 
Result so far: 89408.125
Deduct 4290 from 5040 and we're left with 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7500, and continue the process.

Step 12:
858 can be fit into 7500 8 times, resulting in a remainder of 636.
The next digit of our result is 8. 
Result so far: 89408.1258
If we subtract 6864 from 7500, we get 636.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6360, and continue the process.

Going ahead to step 13:
858 can be fit into 6360 7 times, resulting in a remainder of 354.
The next digit of our result is 7. 
Result so far: 89408.12587
If we subtract 6006 from 6360, we get 354.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

Going ahead to step 14:
The number 858 fits into 3540 4 times, leaving a remainder of 108.
Write down 4 as next digit of the result. 
Result so far: 89408.125874
The remainder is 108 after subtracting 3432 from 3540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Moving on to step 15:
858 goes into 1080 1 times with a remainder of 222.
Record the quotient 1 as the next digit in the result. 
Result so far: 89408.1258741
If we take 858 away from 1080, we end up with 222.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2220, and continue the process.

On to step 16:
858 can be fit into 2220 2 times, resulting in a remainder of 504.
Record the quotient 2 as the next digit in the result. 
Result so far: 89408.12587412
If we subtract 1716 from 2220, we get 504.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

The final outcome is 89408.12587412, with a leftover of 5.04e-07.