91450640 divided by 754 
The aim is to understand the frequency of 754 in 91450640.

Advancing to step 1:
When dividing 9 by 754, we get 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Append the next digit (1) from the dividend to 9 and continue with: 91 / 754

On to step 2:
The number 754 fits into 91 0 times, leaving a remainder of 91.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 91, we end up with 91.
Append the next digit (4) from the dividend to 91 and continue with: 914 / 754

Step 3:
914 divided by 754 is 1 with a remainder of 160.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 754 from 914, we get 160.
Include the next digit (5) from the dividend after 160, then repeat: 1605 / 754

Step 4:
754 can be fit into 1605 2 times, resulting in a remainder of 97.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
The remainder is 97 after subtracting 1508 from 1605.
Fetch the next digit (0) from the dividend, attach it to 97 and continue: 970 / 754

Moving on to step 5:
970 divided by 754 is 1 with a remainder of 216.
Record the quotient 1 as the next digit in the result. 
Result so far: 121.0
If we subtract 754 from 970, we get 216.
Fetch the next digit (6) from the dividend, attach it to 216 and continue: 2166 / 754

Let's proceed to step 6:
754 goes into 2166 2 times with a remainder of 658.
Use 2 as the next digit of our solution. 
Result so far: 1212.0
Subtracting 1508 from 2166 leaves us with 658.
Bring next digit (4) of the dividend behind the 658 and repeat the process: 6584 / 754

Let's proceed to step 7:
754 goes into 6584 8 times with a remainder of 552.
The next digit of our result is 8. 
Result so far: 12128.0
If we take 6032 away from 6584, we end up with 552.
Append the next digit (0) from the dividend to 552 and continue with: 5520 / 754

Going ahead to step 8:
When dividing 5520 by 754, we get 7 with a remainder of 242.
The next digit of our result is 7. 
Result so far: 121287.0
Subtracting 5278 from 5520 leaves us with 242.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2420, and continue the process.

Step 9:
The number 754 fits into 2420 3 times, leaving a remainder of 158.
Record the quotient 3 as the next digit in the result. 
Result so far: 121287.3
If we take 2262 away from 2420, we end up with 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

Advancing to step 10:
When dividing 1580 by 754, we get 2 with a remainder of 72.
Record the quotient 2 as the next digit in the result. 
Result so far: 121287.32
If we subtract 1508 from 1580, we get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 11:
754 goes into 720 0 times with a remainder of 720.
Write down 0 as next digit of the result. 
Result so far: 121287.32
The remainder is 720 after subtracting 0 from 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

Advancing to step 12:
If we divide 7200 by 754, we get 9 and a remainder of 414.
Record the quotient 9 as the next digit in the result. 
Result so far: 121287.3209
The remainder is 414 after subtracting 6786 from 7200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4140, and continue the process.

Going ahead to step 13:
754 goes into 4140 5 times with a remainder of 370.
Put 5 as the next digit of the answer. 
Result so far: 121287.32095
Subtracting 3770 from 4140 leaves us with 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Let's proceed to step 14:
If we divide 3700 by 754, we get 4 and a remainder of 684.
Write down 4 as next digit of the result. 
Result so far: 121287.320954
Deduct 3016 from 3700 and we're left with 684.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6840, and continue the process.

Moving on to step 15:
754 can be fit into 6840 9 times, resulting in a remainder of 54.
Use 9 as the next digit of our solution. 
Result so far: 121287.3209549
Subtract 6786 from 6840 to get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Let's proceed to step 16:
754 can be fit into 540 0 times, resulting in a remainder of 540.
Use 0 as the next digit of our solution. 
Result so far: 121287.3209549
If we take 0 away from 540, we end up with 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

The final outcome is 121287.3209549, with a leftover of 5.4e-07.