We divide 17285990 by 856
The aim is to understand the frequency of 856 in 17285990.

Going ahead to step 1:
856 goes into 1 0 times with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Append the next digit (7) from the dividend to 1 and continue with: 17 / 856

Moving on to step 2:
856 can be fit into 17 0 times, resulting in a remainder of 17.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 17 and we're left with 17.
Grab the next digit (2) from the dividend, add it to 17, then carry on: 172 / 856

Advancing to step 3:
The number 856 fits into 172 0 times, leaving a remainder of 172.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 172, we end up with 172.
Append the next digit (8) from the dividend to 172 and continue with: 1728 / 856

Let's proceed to step 4:
1728 divided by 856 is 2 with a remainder of 16.
The next digit of our result is 2. 
Result so far: 2.0
If we take 1712 away from 1728, we end up with 16.
Take the next digit (5) from the dividend and append it to 16, then repeat: 165 / 856

Advancing to step 5:
165 divided by 856 is 0 with a remainder of 165.
The number 0 becomes the next digit in our result. 
Result so far: 20.0
If we take 0 away from 165, we end up with 165.
Include the next digit (9) from the dividend after 165, then repeat: 1659 / 856

Step 6:
When dividing 1659 by 856, we get 1 with a remainder of 803.
Put 1 as the next digit of the answer. 
Result so far: 201.0
Subtracting 856 from 1659 leaves us with 803.
Fetch the next digit (9) from the dividend, attach it to 803 and continue: 8039 / 856

Step 7:
The number 856 fits into 8039 9 times, leaving a remainder of 335.
Use 9 as the next digit of our solution. 
Result so far: 2019.0
Subtracting 7704 from 8039 leaves us with 335.
Take the next digit (0) from the dividend and append it to 335, then repeat: 3350 / 856

Step 8:
If we divide 3350 by 856, we get 3 and a remainder of 782.
The number 3 becomes the next digit in our result. 
Result so far: 20193.0
Subtracting 2568 from 3350 leaves us with 782.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7820, and continue the process.

Step 9:
The number 856 fits into 7820 9 times, leaving a remainder of 116.
Use 9 as the next digit of our solution. 
Result so far: 20193.9
If we take 7704 away from 7820, we end up with 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

Moving on to step 10:
If we divide 1160 by 856, we get 1 and a remainder of 304.
The number 1 becomes the next digit in our result. 
Result so far: 20193.91
If we take 856 away from 1160, we end up with 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Going ahead to step 11:
3040 divided by 856 is 3 with a remainder of 472.
Use 3 as the next digit of our solution. 
Result so far: 20193.913
Subtract 2568 from 3040 to get 472.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4720, and continue the process.

Advancing to step 12:
When dividing 4720 by 856, we get 5 with a remainder of 440.
Put 5 as the next digit of the answer. 
Result so far: 20193.9135
Subtracting 4280 from 4720 leaves us with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Going ahead to step 13:
The number 856 fits into 4400 5 times, leaving a remainder of 120.
Record the quotient 5 as the next digit in the result. 
Result so far: 20193.91355
The remainder is 120 after subtracting 4280 from 4400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

After the division, we end up with 20193.91355 and a remainder of 0.00012.