We divide 89888986 by 840
The aim is to understand the frequency of 840 in 89888986.

Moving on to step 1:
If we divide 8 by 840, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Include the next digit (9) from the dividend after 8, then repeat: 89 / 840

Advancing to step 2:
When dividing 89 by 840, we get 0 with a remainder of 89.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 89 and we're left with 89.
Fetch the next digit (8) from the dividend, attach it to 89 and continue: 898 / 840

Advancing to step 3:
The number 840 fits into 898 1 times, leaving a remainder of 58.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 58 after subtracting 840 from 898.
Append the next digit (8) from the dividend to 58 and continue with: 588 / 840

Let's proceed to step 4:
588 divided by 840 is 0 with a remainder of 588.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Subtracting 0 from 588 leaves us with 588.
Take the next digit (8) from the dividend and append it to 588, then repeat: 5888 / 840

On to step 5:
840 goes into 5888 7 times with a remainder of 8.
The number 7 becomes the next digit in our result. 
Result so far: 107.0
Deduct 5880 from 5888 and we're left with 8.
Bring next digit (9) of the dividend behind the 8 and repeat the process: 89 / 840

Going ahead to step 6:
The number 840 fits into 89 0 times, leaving a remainder of 89.
Record the quotient 0 as the next digit in the result. 
Result so far: 1070.0
Subtracting 0 from 89 leaves us with 89.
Take the next digit (8) from the dividend and append it to 89, then repeat: 898 / 840

On to step 7:
840 can be fit into 898 1 times, resulting in a remainder of 58.
The number 1 becomes the next digit in our result. 
Result so far: 10701.0
The remainder is 58 after subtracting 840 from 898.
Append the next digit (6) from the dividend to 58 and continue with: 586 / 840

Moving on to step 8:
When dividing 586 by 840, we get 0 with a remainder of 586.
The next digit of our result is 0. 
Result so far: 107010.0
Deduct 0 from 586 and we're left with 586.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5860, and continue the process.

Advancing to step 9:
The number 840 fits into 5860 6 times, leaving a remainder of 820.
The next digit of our result is 6. 
Result so far: 107010.6
The remainder is 820 after subtracting 5040 from 5860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8200, and continue the process.

Let's proceed to step 10:
840 goes into 8200 9 times with a remainder of 640.
The number 9 becomes the next digit in our result. 
Result so far: 107010.69
If we subtract 7560 from 8200, we get 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Moving on to step 11:
The number 840 fits into 6400 7 times, leaving a remainder of 520.
Record the quotient 7 as the next digit in the result. 
Result so far: 107010.697
Subtracting 5880 from 6400 leaves us 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.

Let's proceed to step 12:
5200 divided by 840 is 6 with a remainder of 160.
Put 6 as the next digit of the answer. 
Result so far: 107010.6976
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.

Going ahead to step 13:
When dividing 1600 by 840, we get 1 with a remainder of 760.
The number 1 becomes the next digit in our result. 
Result so far: 107010.69761
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.

Let's proceed to step 14:
The number 840 fits into 7600 9 times, leaving a remainder of 40.
Write down 9 as next digit of the result. 
Result so far: 107010.697619
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.

Going ahead to step 15:
400 divided by 840 is 0 with a remainder of 400.
Use 0 as the next digit of our solution. 
Result so far: 107010.697619
Subtracting 0 from 400 leaves us 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.

On to step 16:
840 can be fit into 4000 4 times, resulting in a remainder of 640.
Write down 4 as next digit of the result. 
Result so far: 107010.69761904
If we subtract 3360 from 4000, we get 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Our division results in 107010.69761904 with a remaining 6.4e-07.