18439750 divided by 857 
The aim is to understand the frequency of 857 in 18439750.

On to step 1:
When dividing 1 by 857, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (8) from the dividend, add it to 1, then carry on: 18 / 857

Advancing to step 2:
857 can be fit into 18 0 times, resulting in a remainder of 18.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 18 after subtracting 0 from 18.
Bring next digit (4) of the dividend behind the 18 and repeat the process: 184 / 857

Step 3:
184 divided by 857 is 0 with a remainder of 184.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 184, we end up with 184.
Bring next digit (3) of the dividend behind the 184 and repeat the process: 1843 / 857

Let's proceed to step 4:
857 can be fit into 1843 2 times, resulting in a remainder of 129.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Deduct 1714 from 1843 and we're left with 129.
Fetch the next digit (9) from the dividend, attach it to 129 and continue: 1299 / 857

Advancing to step 5:
857 goes into 1299 1 times with a remainder of 442.
Record the quotient 1 as the next digit in the result. 
Result so far: 21.0
If we take 857 away from 1299, we end up with 442.
Include the next digit (7) from the dividend after 442, then repeat: 4427 / 857

Let's proceed to step 6:
4427 divided by 857 is 5 with a remainder of 142.
Write down 5 as next digit of the result. 
Result so far: 215.0
Deduct 4285 from 4427 and we're left with 142.
Fetch the next digit (5) from the dividend, attach it to 142 and continue: 1425 / 857

Let's proceed to step 7:
If we divide 1425 by 857, we get 1 and a remainder of 568.
Use 1 as the next digit of our solution. 
Result so far: 2151.0
If we take 857 away from 1425, we end up with 568.
Grab the next digit (0) from the dividend, add it to 568, then carry on: 5680 / 857

Step 8:
857 can be fit into 5680 6 times, resulting in a remainder of 538.
Write down 6 as next digit of the result. 
Result so far: 21516.0
If we subtract 5142 from 5680, we get 538.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5380, and continue the process.

Advancing to step 9:
When dividing 5380 by 857, we get 6 with a remainder of 238.
Write down 6 as next digit of the result. 
Result so far: 21516.6
Subtracting 5142 from 5380 leaves us with 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Moving on to step 10:
857 can be fit into 2380 2 times, resulting in a remainder of 666.
The number 2 becomes the next digit in our result. 
Result so far: 21516.62
Deduct 1714 from 2380 and we're left with 666.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6660, and continue the process.

Advancing to step 11:
If we divide 6660 by 857, we get 7 and a remainder of 661.
Use 7 as the next digit of our solution. 
Result so far: 21516.627
Deduct 5999 from 6660 and we're left with 661.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6610, and continue the process.

Moving on to step 12:
857 goes into 6610 7 times with a remainder of 611.
Use 7 as the next digit of our solution. 
Result so far: 21516.6277
Subtract 5999 from 6610 to get 611.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6110, and continue the process.

After the division, we end up with 21516.6277 and a remainder of 0.00611.