We're dividing 71823300 by 840 
The aim is to understand the frequency of 840 in 71823300.

Going ahead to step 1:
840 can be fit into 7 0 times, resulting in a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Fetch the next digit (1) from the dividend, attach it to 7 and continue: 71 / 840

On to step 2:
The number 840 fits into 71 0 times, leaving a remainder of 71.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 71, we get 71.
Fetch the next digit (8) from the dividend, attach it to 71 and continue: 718 / 840

Step 3:
840 can be fit into 718 0 times, resulting in a remainder of 718.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 718, we get 718.
Grab the next digit (2) from the dividend, add it to 718, then carry on: 7182 / 840

Let's proceed to step 4:
The number 840 fits into 7182 8 times, leaving a remainder of 462.
Put 8 as the next digit of the answer. 
Result so far: 8.0
If we take 6720 away from 7182, we end up with 462.
Bring next digit (3) of the dividend behind the 462 and repeat the process: 4623 / 840

Advancing to step 5:
If we divide 4623 by 840, we get 5 and a remainder of 423.
The next digit of our result is 5. 
Result so far: 85.0
Subtracting 4200 from 4623 leaves us with 423.
Bring next digit (3) of the dividend behind the 423 and repeat the process: 4233 / 840

On to step 6:
840 goes into 4233 5 times with a remainder of 33.
Write down 5 as next digit of the result. 
Result so far: 855.0
The remainder is 33 after subtracting 4200 from 4233.
Bring next digit (0) of the dividend behind the 33 and repeat the process: 330 / 840

Advancing to step 7:
The number 840 fits into 330 0 times, leaving a remainder of 330.
The number 0 becomes the next digit in our result. 
Result so far: 8550.0
Subtract 0 from 330 to get 330.
Fetch the next digit (0) from the dividend, attach it to 330 and continue: 3300 / 840

Step 8:
840 goes into 3300 3 times with a remainder of 780.
Write down 3 as next digit of the result. 
Result so far: 85503.0
Deduct 2520 from 3300 and we're left with 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7800, and continue the process.

Let's proceed to step 9:
If we divide 7800 by 840, we get 9 and a remainder of 240.
Put 9 as the next digit of the answer. 
Result so far: 85503.9
Deduct 7560 from 7800 and we're left with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

On to step 10:
When dividing 2400 by 840, we get 2 with a remainder of 720.
Record the quotient 2 as the next digit in the result. 
Result so far: 85503.92
Subtracting 1680 from 2400 leaves us with 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

Let's proceed to step 11:
840 can be fit into 7200 8 times, resulting in a remainder of 480.
The number 8 becomes the next digit in our result. 
Result so far: 85503.928
If we subtract 6720 from 7200, we get 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Let's proceed to step 12:
When dividing 4800 by 840, we get 5 with a remainder of 600.
Put 5 as the next digit of the answer. 
Result so far: 85503.9285
The remainder is 600 after subtracting 4200 from 4800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Moving on to step 13:
When dividing 6000 by 840, we get 7 with a remainder of 120.
Put 7 as the next digit of the answer. 
Result so far: 85503.92857
Deduct 5880 from 6000 and we're left with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

On to step 14:
When dividing 1200 by 840, we get 1 with a remainder of 360.
Record the quotient 1 as the next digit in the result. 
Result so far: 85503.928571
Deduct 840 from 1200 and we're left with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

On to step 15:
The number 840 fits into 3600 4 times, leaving a remainder of 240.
The next digit of our result is 4. 
Result so far: 85503.9285714
Subtract 3360 from 3600 to get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Moving on to step 16:
840 goes into 2400 2 times with a remainder of 720.
Use 2 as the next digit of our solution. 
Result so far: 85503.92857142
Deduct 1680 from 2400 and we're left with 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

Our division results in 85503.92857142 with a remaining 7.2e-07.