We're dividing 68746733 by 643 
The aim is to understand the frequency of 643 in 68746733.

Going ahead to step 1:
The number 643 fits into 6 0 times, leaving a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Include the next digit (8) from the dividend after 6, then repeat: 68 / 643

Going ahead to step 2:
When dividing 68 by 643, we get 0 with a remainder of 68.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 68 to get 68.
Fetch the next digit (7) from the dividend, attach it to 68 and continue: 687 / 643

Advancing to step 3:
643 goes into 687 1 times with a remainder of 44.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 643 from 687 to get 44.
Bring next digit (4) of the dividend behind the 44 and repeat the process: 444 / 643

Let's proceed to step 4:
If we divide 444 by 643, we get 0 and a remainder of 444.
The next digit of our result is 0. 
Result so far: 10.0
Subtract 0 from 444 to get 444.
Fetch the next digit (6) from the dividend, attach it to 444 and continue: 4446 / 643

On to step 5:
If we divide 4446 by 643, we get 6 and a remainder of 588.
The number 6 becomes the next digit in our result. 
Result so far: 106.0
The remainder is 588 after subtracting 3858 from 4446.
Grab the next digit (7) from the dividend, add it to 588, then carry on: 5887 / 643

Step 6:
5887 divided by 643 is 9 with a remainder of 100.
Use 9 as the next digit of our solution. 
Result so far: 1069.0
Subtract 5787 from 5887 to get 100.
Fetch the next digit (3) from the dividend, attach it to 100 and continue: 1003 / 643

Going ahead to step 7:
643 can be fit into 1003 1 times, resulting in a remainder of 360.
Record the quotient 1 as the next digit in the result. 
Result so far: 10691.0
The remainder is 360 after subtracting 643 from 1003.
Bring next digit (3) of the dividend behind the 360 and repeat the process: 3603 / 643

On to step 8:
643 goes into 3603 5 times with a remainder of 388.
Write down 5 as next digit of the result. 
Result so far: 106915.0
If we take 3215 away from 3603, we end up with 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Step 9:
When dividing 3880 by 643, we get 6 with a remainder of 22.
Use 6 as the next digit of our solution. 
Result so far: 106915.6
The remainder is 22 after subtracting 3858 from 3880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 10:
The number 643 fits into 220 0 times, leaving a remainder of 220.
The number 0 becomes the next digit in our result. 
Result so far: 106915.6
Subtract 0 from 220 to get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Step 11:
643 goes into 2200 3 times with a remainder of 271.
Write down 3 as next digit of the result. 
Result so far: 106915.603
Deduct 1929 from 2200 and we're left with 271.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2710, and continue the process.

Advancing to step 12:
643 goes into 2710 4 times with a remainder of 138.
The number 4 becomes the next digit in our result. 
Result so far: 106915.6034
If we take 2572 away from 2710, we end up with 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

On to step 13:
When dividing 1380 by 643, we get 2 with a remainder of 94.
The number 2 becomes the next digit in our result. 
Result so far: 106915.60342
The remainder is 94 after subtracting 1286 from 1380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

On to step 14:
When dividing 940 by 643, we get 1 with a remainder of 297.
The number 1 becomes the next digit in our result. 
Result so far: 106915.603421
If we subtract 643 from 940, we get 297.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2970, and continue the process.

Let's proceed to step 15:
2970 divided by 643 is 4 with a remainder of 398.
Use 4 as the next digit of our solution. 
Result so far: 106915.6034214
If we take 2572 away from 2970, we end up with 398.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3980, and continue the process.

Advancing to step 16:
643 goes into 3980 6 times with a remainder of 122.
The next digit of our result is 6. 
Result so far: 106915.60342146
Subtract 3858 from 3980 to get 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

In conclusion, the division gives 106915.60342146 with a balance of 1.22e-07.