Let's divide 1078042 by 644
The aim is to understand the frequency of 644 in 1078042.

On to step 1:
644 can be fit into 1 0 times, resulting in a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Fetch the next digit (0) from the dividend, attach it to 1 and continue: 10 / 644

On to step 2:
When dividing 10 by 644, we get 0 with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 10 leaves us with 10.
Bring next digit (7) of the dividend behind the 10 and repeat the process: 107 / 644

On to step 3:
If we divide 107 by 644, we get 0 and a remainder of 107.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 107 and we're left with 107.
Bring next digit (8) of the dividend behind the 107 and repeat the process: 1078 / 644

Going ahead to step 4:
644 can be fit into 1078 1 times, resulting in a remainder of 434.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 644 from 1078 leaves us with 434.
Take the next digit (0) from the dividend and append it to 434, then repeat: 4340 / 644

Let's proceed to step 5:
4340 divided by 644 is 6 with a remainder of 476.
Use 6 as the next digit of our solution. 
Result so far: 16.0
If we subtract 3864 from 4340, we get 476.
Bring next digit (4) of the dividend behind the 476 and repeat the process: 4764 / 644

Step 6:
If we divide 4764 by 644, we get 7 and a remainder of 256.
The number 7 becomes the next digit in our result. 
Result so far: 167.0
If we take 4508 away from 4764, we end up with 256.
Grab the next digit (2) from the dividend, add it to 256, then carry on: 2562 / 644

Going ahead to step 7:
644 goes into 2562 3 times with a remainder of 630.
Use 3 as the next digit of our solution. 
Result so far: 1673.0
If we subtract 1932 from 2562, we get 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

Let's proceed to step 8:
The number 644 fits into 6300 9 times, leaving a remainder of 504.
Record the quotient 9 as the next digit in the result. 
Result so far: 1673.9
Subtracting 5796 from 6300 leaves us with 504.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

Advancing to step 9:
When dividing 5040 by 644, we get 7 with a remainder of 532.
Write down 7 as next digit of the result. 
Result so far: 1673.97
If we take 4508 away from 5040, we end up with 532.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5320, and continue the process.

Moving on to step 10:
The number 644 fits into 5320 8 times, leaving a remainder of 168.
The number 8 becomes the next digit in our result. 
Result so far: 1673.978
Subtracting 5152 from 5320 leaves us with 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Step 11:
1680 divided by 644 is 2 with a remainder of 392.
Record the quotient 2 as the next digit in the result. 
Result so far: 1673.9782
If we take 1288 away from 1680, we end up with 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

Advancing to step 12:
If we divide 3920 by 644, we get 6 and a remainder of 56.
Record the quotient 6 as the next digit in the result. 
Result so far: 1673.97826
Subtracting 3864 from 3920 leaves us with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 13:
If we divide 560 by 644, we get 0 and a remainder of 560.
The number 0 becomes the next digit in our result. 
Result so far: 1673.97826
If we subtract 0 from 560, we get 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Going ahead to step 14:
644 goes into 5600 8 times with a remainder of 448.
Write down 8 as next digit of the result. 
Result so far: 1673.9782608
If we subtract 5152 from 5600, we get 448.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

Advancing to step 15:
When dividing 4480 by 644, we get 6 with a remainder of 616.
Use 6 as the next digit of our solution. 
Result so far: 1673.97826086
Deduct 3864 from 4480 and we're left with 616.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6160, and continue the process.

The final outcome is 1673.97826086, with a leftover of 6.16e-07.