Let's divide 4404172 by 840
The aim is to understand the frequency of 840 in 4404172.

Advancing to step 1:
840 can be fit into 4 0 times, resulting in a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Append the next digit (4) from the dividend to 4 and continue with: 44 / 840

On to step 2:
44 divided by 840 is 0 with a remainder of 44.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 44, we get 44.
Append the next digit (0) from the dividend to 44 and continue with: 440 / 840

Going ahead to step 3:
440 divided by 840 is 0 with a remainder of 440.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 440 leaves us with 440.
Bring next digit (4) of the dividend behind the 440 and repeat the process: 4404 / 840

Going ahead to step 4:
When dividing 4404 by 840, we get 5 with a remainder of 204.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtracting 4200 from 4404 leaves us with 204.
Take the next digit (1) from the dividend and append it to 204, then repeat: 2041 / 840

Step 5:
When dividing 2041 by 840, we get 2 with a remainder of 361.
The number 2 becomes the next digit in our result. 
Result so far: 52.0
Subtract 1680 from 2041 to get 361.
Fetch the next digit (7) from the dividend, attach it to 361 and continue: 3617 / 840

Step 6:
The number 840 fits into 3617 4 times, leaving a remainder of 257.
Write down 4 as next digit of the result. 
Result so far: 524.0
Subtract 3360 from 3617 to get 257.
Bring next digit (2) of the dividend behind the 257 and repeat the process: 2572 / 840

Advancing to step 7:
When dividing 2572 by 840, we get 3 with a remainder of 52.
Use 3 as the next digit of our solution. 
Result so far: 5243.0
Subtract 2520 from 2572 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Step 8:
If we divide 520 by 840, we get 0 and a remainder of 520.
Use 0 as the next digit of our solution. 
Result so far: 5243.0
The remainder is 520 after subtracting 0 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

Let's proceed to step 9:
5200 divided by 840 is 6 with a remainder of 160.
Write down 6 as next digit of the result. 
Result so far: 5243.06
The remainder is 160 after subtracting 5040 from 5200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Let's proceed 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: 5243.061
Deduct 840 from 1600 and we're left with 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7600, and continue the process.

Let's proceed to step 11:
840 can be fit into 7600 9 times, resulting in a remainder of 40.
The next digit of our result is 9. 
Result so far: 5243.0619
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.

Let's proceed to step 12:
840 can be fit into 400 0 times, resulting in a remainder of 400.
Use 0 as the next digit of our solution. 
Result so far: 5243.0619
Deduct 0 from 400 and we're left with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Moving on to step 13:
When dividing 4000 by 840, we get 4 with a remainder of 640.
The next digit of our result is 4. 
Result so far: 5243.061904
Deduct 3360 from 4000 and we're left 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.

Advancing to step 14:
The number 840 fits into 6400 7 times, leaving a remainder of 520.
The next digit of our result is 7. 
Result so far: 5243.0619047
Subtract 5880 from 6400 to get 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

On to step 15:
If we divide 5200 by 840, we get 6 and a remainder of 160.
The next digit of our result is 6. 
Result so far: 5243.06190476
The remainder is 160 after subtracting 5040 from 5200.
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 result is 5243.06190476 with a remainder of 1.6e-07.