89352094 ÷ 644 
The aim is to understand the frequency of 644 in 89352094.

Going ahead to step 1:
When dividing 8 by 644, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (9) of the dividend behind the 8 and repeat the process: 89 / 644

Step 2:
The number 644 fits into 89 0 times, leaving a remainder of 89.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 89 and we're left with 89.
Fetch the next digit (3) from the dividend, attach it to 89 and continue: 893 / 644

Moving on to step 3:
The number 644 fits into 893 1 times, leaving a remainder of 249.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 644 away from 893, we end up with 249.
Append the next digit (5) from the dividend to 249 and continue with: 2495 / 644

Advancing to step 4:
2495 divided by 644 is 3 with a remainder of 563.
Use 3 as the next digit of our solution. 
Result so far: 13.0
The remainder is 563 after subtracting 1932 from 2495.
Append the next digit (2) from the dividend to 563 and continue with: 5632 / 644

On to step 5:
5632 divided by 644 is 8 with a remainder of 480.
The number 8 becomes the next digit in our result. 
Result so far: 138.0
The remainder is 480 after subtracting 5152 from 5632.
Grab the next digit (0) from the dividend, add it to 480, then carry on: 4800 / 644

Going ahead to step 6:
644 can be fit into 4800 7 times, resulting in a remainder of 292.
The number 7 becomes the next digit in our result. 
Result so far: 1387.0
Subtract 4508 from 4800 to get 292.
Take the next digit (9) from the dividend and append it to 292, then repeat: 2929 / 644

Moving on to step 7:
When dividing 2929 by 644, we get 4 with a remainder of 353.
Put 4 as the next digit of the answer. 
Result so far: 13874.0
Deduct 2576 from 2929 and we're left with 353.
Include the next digit (4) from the dividend after 353, then repeat: 3534 / 644

Step 8:
If we divide 3534 by 644, we get 5 and a remainder of 314.
Write down 5 as next digit of the result. 
Result so far: 138745.0
Subtract 3220 from 3534 to get 314.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3140, and continue the process.

On to step 9:
644 goes into 3140 4 times with a remainder of 564.
The next digit of our result is 4. 
Result so far: 138745.4
Deduct 2576 from 3140 and we're left with 564.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5640, and continue the process.

Moving on to step 10:
644 can be fit into 5640 8 times, resulting in a remainder of 488.
Put 8 as the next digit of the answer. 
Result so far: 138745.48
Deduct 5152 from 5640 and we're left with 488.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4880, and continue the process.

Moving on to step 11:
4880 divided by 644 is 7 with a remainder of 372.
Write down 7 as next digit of the result. 
Result so far: 138745.487
If we subtract 4508 from 4880, we get 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

On to step 12:
When dividing 3720 by 644, we get 5 with a remainder of 500.
Use 5 as the next digit of our solution. 
Result so far: 138745.4875
The remainder is 500 after subtracting 3220 from 3720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Going ahead to step 13:
644 can be fit into 5000 7 times, resulting in a remainder of 492.
Record the quotient 7 as the next digit in the result. 
Result so far: 138745.48757
Subtract 4508 from 5000 to get 492.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4920, and continue the process.

Going ahead to step 14:
644 can be fit into 4920 7 times, resulting in a remainder of 412.
Use 7 as the next digit of our solution. 
Result so far: 138745.487577
Deduct 4508 from 4920 and we're left with 412.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4120, and continue the process.

In conclusion, the division gives 138745.487577 with a balance of 4.12e-05.