69812991 ÷ 748 
The aim is to understand the frequency of 748 in 69812991.

Moving on to step 1:
If we divide 6 by 748, we get 0 and a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Append the next digit (9) from the dividend to 6 and continue with: 69 / 748

Step 2:
69 divided by 748 is 0 with a remainder of 69.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 69 leaves us with 69.
Take the next digit (8) from the dividend and append it to 69, then repeat: 698 / 748

Going ahead to step 3:
The number 748 fits into 698 0 times, leaving a remainder of 698.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 698 after subtracting 0 from 698.
Bring next digit (1) of the dividend behind the 698 and repeat the process: 6981 / 748

Going ahead to step 4:
If we divide 6981 by 748, we get 9 and a remainder of 249.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Deduct 6732 from 6981 and we're left with 249.
Grab the next digit (2) from the dividend, add it to 249, then carry on: 2492 / 748

On to step 5:
748 can be fit into 2492 3 times, resulting in a remainder of 248.
The number 3 becomes the next digit in our result. 
Result so far: 93.0
Subtracting 2244 from 2492 leaves us with 248.
Fetch the next digit (9) from the dividend, attach it to 248 and continue: 2489 / 748

Let's proceed to step 6:
The number 748 fits into 2489 3 times, leaving a remainder of 245.
Record the quotient 3 as the next digit in the result. 
Result so far: 933.0
Subtracting 2244 from 2489 leaves us with 245.
Fetch the next digit (9) from the dividend, attach it to 245 and continue: 2459 / 748

Step 7:
When dividing 2459 by 748, we get 3 with a remainder of 215.
Record the quotient 3 as the next digit in the result. 
Result so far: 9333.0
The remainder is 215 after subtracting 2244 from 2459.
Include the next digit (1) from the dividend after 215, then repeat: 2151 / 748

Let's proceed to step 8:
748 can be fit into 2151 2 times, resulting in a remainder of 655.
Use 2 as the next digit of our solution. 
Result so far: 93332.0
Subtracting 1496 from 2151 leaves us with 655.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6550, and continue the process.

Step 9:
748 goes into 6550 8 times with a remainder of 566.
Put 8 as the next digit of the answer. 
Result so far: 93332.8
If we take 5984 away from 6550, we end up with 566.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5660, and continue the process.

Step 10:
If we divide 5660 by 748, we get 7 and a remainder of 424.
The number 7 becomes the next digit in our result. 
Result so far: 93332.87
Subtract 5236 from 5660 to get 424.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4240, and continue the process.

Let's proceed to step 11:
The number 748 fits into 4240 5 times, leaving a remainder of 500.
Write down 5 as next digit of the result. 
Result so far: 93332.875
Subtract 3740 from 4240 to get 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Step 12:
748 goes into 5000 6 times with a remainder of 512.
Use 6 as the next digit of our solution. 
Result so far: 93332.8756
The remainder is 512 after subtracting 4488 from 5000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

Going ahead to step 13:
When dividing 5120 by 748, we get 6 with a remainder of 632.
The next digit of our result is 6. 
Result so far: 93332.87566
Subtracting 4488 from 5120 leaves us with 632.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6320, and continue the process.

The final outcome is 93332.87566, with a leftover of 0.000632.