1876192 ÷ 840 
The aim is to understand the frequency of 840 in 1876192.

Step 1:
840 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Grab the next digit (8) from the dividend, add it to 1, then carry on: 18 / 840

Advancing to step 2:
If we divide 18 by 840, we get 0 and a remainder of 18.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 18 leaves us with 18.
Bring next digit (7) of the dividend behind the 18 and repeat the process: 187 / 840

Going ahead to step 3:
840 goes into 187 0 times with a remainder of 187.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 187 after subtracting 0 from 187.
Fetch the next digit (6) from the dividend, attach it to 187 and continue: 1876 / 840

Let's proceed to step 4:
When dividing 1876 by 840, we get 2 with a remainder of 196.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we subtract 1680 from 1876, we get 196.
Take the next digit (1) from the dividend and append it to 196, then repeat: 1961 / 840

Let's proceed to step 5:
840 goes into 1961 2 times with a remainder of 281.
Put 2 as the next digit of the answer. 
Result so far: 22.0
Subtract 1680 from 1961 to get 281.
Fetch the next digit (9) from the dividend, attach it to 281 and continue: 2819 / 840

Advancing to step 6:
The number 840 fits into 2819 3 times, leaving a remainder of 299.
The next digit of our result is 3. 
Result so far: 223.0
Subtracting 2520 from 2819 leaves us with 299.
Append the next digit (2) from the dividend to 299 and continue with: 2992 / 840

Let's proceed to step 7:
840 can be fit into 2992 3 times, resulting in a remainder of 472.
Record the quotient 3 as the next digit in the result. 
Result so far: 2233.0
The remainder is 472 after subtracting 2520 from 2992.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4720, and continue the process.

Let's proceed to step 8:
840 can be fit into 4720 5 times, resulting in a remainder of 520.
Write down 5 as next digit of the result. 
Result so far: 2233.5
If we take 4200 away from 4720, we end up with 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

Moving on to step 9:
When dividing 5200 by 840, we get 6 with a remainder of 160.
Put 6 as the next digit of the answer. 
Result so far: 2233.56
If we take 5040 away from 5200, we end up with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Going ahead to step 10:
The number 840 fits into 1600 1 times, leaving a remainder of 760.
Use 1 as the next digit of our solution. 
Result so far: 2233.561
If we subtract 840 from 1600, we get 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7600, and continue the process.

Going ahead to step 11:
7600 divided by 840 is 9 with a remainder of 40.
Put 9 as the next digit of the answer. 
Result so far: 2233.5619
Subtract 7560 from 7600 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 12:
840 goes into 400 0 times with a remainder of 400.
Put 0 as the next digit of the answer. 
Result so far: 2233.5619
Subtract 0 from 400 to get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Step 13:
When dividing 4000 by 840, we get 4 with a remainder of 640.
Use 4 as the next digit of our solution. 
Result so far: 2233.561904
Subtracting 3360 from 4000 leaves us with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

On to step 14:
840 can be fit into 6400 7 times, resulting in a remainder of 520.
The next digit of our result is 7. 
Result so far: 2233.5619047
If we take 5880 away from 6400, we end up with 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

Step 15:
The number 840 fits into 5200 6 times, leaving a remainder of 160.
Use 6 as the next digit of our solution. 
Result so far: 2233.56190476
Subtracting 5040 from 5200 leaves us with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

The final outcome is 2233.56190476, with a leftover of 1.6e-07.