878401 ÷ 38 
The aim is to understand the frequency of 38 in 878401.

Going ahead to step 1:
When dividing 8 by 38, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 38

Going ahead to step 2:
38 goes into 87 2 times with a remainder of 11.
The next digit of our result is 2. 
Result so far: 2.0
Deduct 76 from 87 and we're left with 11.
Grab the next digit (8) from the dividend, add it to 11, then carry on: 118 / 38

Let's proceed to step 3:
When dividing 118 by 38, we get 3 with a remainder of 4.
The next digit of our result is 3. 
Result so far: 23.0
If we subtract 114 from 118, we get 4.
Include the next digit (4) from the dividend after 4, then repeat: 44 / 38

Let's proceed to step 4:
When dividing 44 by 38, we get 1 with a remainder of 6.
Use 1 as the next digit of our solution. 
Result so far: 231.0
Deduct 38 from 44 and we're left with 6.
Fetch the next digit (0) from the dividend, attach it to 6 and continue: 60 / 38

Let's proceed to step 5:
38 goes into 60 1 times with a remainder of 22.
Write down 1 as next digit of the result. 
Result so far: 2311.0
Subtract 38 from 60 to get 22.
Fetch the next digit (1) from the dividend, attach it to 22 and continue: 221 / 38

Moving on to step 6:
The number 38 fits into 221 5 times, leaving a remainder of 31.
The number 5 becomes the next digit in our result. 
Result so far: 23115.0
If we subtract 190 from 221, we get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 7:
The number 38 fits into 310 8 times, leaving a remainder of 6.
Use 8 as the next digit of our solution. 
Result so far: 23115.8
Deduct 304 from 310 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 8:
If we divide 60 by 38, we get 1 and a remainder of 22.
Record the quotient 1 as the next digit in the result. 
Result so far: 23115.81
Subtract 38 from 60 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 9:
If we divide 220 by 38, we get 5 and a remainder of 30.
Record the quotient 5 as the next digit in the result. 
Result so far: 23115.815
The remainder is 30 after subtracting 190 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 10:
When dividing 300 by 38, we get 7 with a remainder of 34.
Write down 7 as next digit of the result. 
Result so far: 23115.8157
If we subtract 266 from 300, we get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Step 11:
If we divide 340 by 38, we get 8 and a remainder of 36.
Put 8 as the next digit of the answer. 
Result so far: 23115.81578
If we take 304 away from 340, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 12:
The number 38 fits into 360 9 times, leaving a remainder of 18.
Use 9 as the next digit of our solution. 
Result so far: 23115.815789
Subtract 342 from 360 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 13:
38 can be fit into 180 4 times, resulting in a remainder of 28.
The next digit of our result is 4. 
Result so far: 23115.8157894
The remainder is 28 after subtracting 152 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 14:
38 goes into 280 7 times with a remainder of 14.
Write down 7 as next digit of the result. 
Result so far: 23115.81578947
Deduct 266 from 280 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

After the division, we end up with 23115.81578947 and a remainder of 1.4e-08.