We look at the division of 89971623 by 654 
The aim is to understand the frequency of 654 in 89971623.

Advancing to step 1:
If we divide 8 by 654, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Include the next digit (9) from the dividend after 8, then repeat: 89 / 654

On to step 2:
654 goes into 89 0 times with a remainder of 89.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 89 leaves us with 89.
Bring next digit (9) of the dividend behind the 89 and repeat the process: 899 / 654

On to step 3:
654 can be fit into 899 1 times, resulting in a remainder of 245.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 654 away from 899, we end up with 245.
Fetch the next digit (7) from the dividend, attach it to 245 and continue: 2457 / 654

On to step 4:
654 can be fit into 2457 3 times, resulting in a remainder of 495.
The next digit of our result is 3. 
Result so far: 13.0
The remainder is 495 after subtracting 1962 from 2457.
Include the next digit (1) from the dividend after 495, then repeat: 4951 / 654

Advancing to step 5:
654 goes into 4951 7 times with a remainder of 373.
Write down 7 as next digit of the result. 
Result so far: 137.0
The remainder is 373 after subtracting 4578 from 4951.
Grab the next digit (6) from the dividend, add it to 373, then carry on: 3736 / 654

Step 6:
3736 divided by 654 is 5 with a remainder of 466.
Write down 5 as next digit of the result. 
Result so far: 1375.0
If we subtract 3270 from 3736, we get 466.
Fetch the next digit (2) from the dividend, attach it to 466 and continue: 4662 / 654

On to step 7:
When dividing 4662 by 654, we get 7 with a remainder of 84.
The next digit of our result is 7. 
Result so far: 13757.0
If we take 4578 away from 4662, we end up with 84.
Fetch the next digit (3) from the dividend, attach it to 84 and continue: 843 / 654

On to step 8:
654 goes into 843 1 times with a remainder of 189.
The number 1 becomes the next digit in our result. 
Result so far: 137571.0
If we take 654 away from 843, we end up with 189.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1890, and continue the process.

Advancing to step 9:
If we divide 1890 by 654, we get 2 and a remainder of 582.
Write down 2 as next digit of the result. 
Result so far: 137571.2
Deduct 1308 from 1890 and we're left with 582.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5820, and continue the process.

On to step 10:
654 goes into 5820 8 times with a remainder of 588.
Write down 8 as next digit of the result. 
Result so far: 137571.28
Deduct 5232 from 5820 and we're left with 588.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5880, and continue the process.

Step 11:
If we divide 5880 by 654, we get 8 and a remainder of 648.
Record the quotient 8 as the next digit in the result. 
Result so far: 137571.288
Subtract 5232 from 5880 to get 648.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6480, and continue the process.

In conclusion, the division gives 137571.288 with a balance of 0.0648.