Let's divide 18545289 by 879
The aim is to understand the frequency of 879 in 18545289.

Advancing to step 1:
879 can be fit into 1 0 times, resulting in a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 879

Advancing to step 2:
When dividing 18 by 879, we get 0 with a remainder of 18.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 18 and we're left with 18.
Bring next digit (5) of the dividend behind the 18 and repeat the process: 185 / 879

Going ahead to step 3:
879 goes into 185 0 times with a remainder of 185.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 185 to get 185.
Include the next digit (4) from the dividend after 185, then repeat: 1854 / 879

Going ahead to step 4:
The number 879 fits into 1854 2 times, leaving a remainder of 96.
The next digit of our result is 2. 
Result so far: 2.0
The remainder is 96 after subtracting 1758 from 1854.
Grab the next digit (5) from the dividend, add it to 96, then carry on: 965 / 879

Let's proceed to step 5:
879 can be fit into 965 1 times, resulting in a remainder of 86.
Put 1 as the next digit of the answer. 
Result so far: 21.0
Subtract 879 from 965 to get 86.
Include the next digit (2) from the dividend after 86, then repeat: 862 / 879

Let's proceed to step 6:
The number 879 fits into 862 0 times, leaving a remainder of 862.
The number 0 becomes the next digit in our result. 
Result so far: 210.0
Deduct 0 from 862 and we're left with 862.
Include the next digit (8) from the dividend after 862, then repeat: 8628 / 879

Step 7:
If we divide 8628 by 879, we get 9 and a remainder of 717.
The next digit of our result is 9. 
Result so far: 2109.0
Subtract 7911 from 8628 to get 717.
Include the next digit (9) from the dividend after 717, then repeat: 7179 / 879

Step 8:
If we divide 7179 by 879, we get 8 and a remainder of 147.
The number 8 becomes the next digit in our result. 
Result so far: 21098.0
Deduct 7032 from 7179 and we're left with 147.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1470, and continue the process.

Let's proceed to step 9:
The number 879 fits into 1470 1 times, leaving a remainder of 591.
Write down 1 as next digit of the result. 
Result so far: 21098.1
If we subtract 879 from 1470, we get 591.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5910, and continue the process.

Moving on to step 10:
879 goes into 5910 6 times with a remainder of 636.
Write down 6 as next digit of the result. 
Result so far: 21098.16
The remainder is 636 after subtracting 5274 from 5910.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6360, and continue the process.

Let's proceed to step 11:
If we divide 6360 by 879, we get 7 and a remainder of 207.
The next digit of our result is 7. 
Result so far: 21098.167
Deduct 6153 from 6360 and we're left with 207.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2070, and continue the process.

Moving on to step 12:
When dividing 2070 by 879, we get 2 with a remainder of 312.
Put 2 as the next digit of the answer. 
Result so far: 21098.1672
Subtract 1758 from 2070 to get 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

Moving on to step 13:
When dividing 3120 by 879, we get 3 with a remainder of 483.
Put 3 as the next digit of the answer. 
Result so far: 21098.16723
Subtracting 2637 from 3120 leaves us with 483.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4830, and continue the process.

Advancing to step 14:
If we divide 4830 by 879, we get 5 and a remainder of 435.
The next digit of our result is 5. 
Result so far: 21098.167235
If we take 4395 away from 4830, we end up with 435.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4350, and continue the process.

Moving on to step 15:
4350 divided by 879 is 4 with a remainder of 834.
The number 4 becomes the next digit in our result. 
Result so far: 21098.1672354
The remainder is 834 after subtracting 3516 from 4350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8340, and continue the process.

Advancing to step 16:
879 can be fit into 8340 9 times, resulting in a remainder of 429.
The next digit of our result is 9. 
Result so far: 21098.16723549
Subtract 7911 from 8340 to get 429.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4290, and continue the process.

The final outcome is 21098.16723549, with a leftover of 4.29e-07.