76391781 divided by 458 
The aim is to understand the frequency of 458 in 76391781.

Let's proceed to step 1:
If we divide 7 by 458, we get 0 and a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Fetch the next digit (6) from the dividend, attach it to 7 and continue: 76 / 458

Step 2:
When dividing 76 by 458, we get 0 with a remainder of 76.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 76, we get 76.
Include the next digit (3) from the dividend after 76, then repeat: 763 / 458

Advancing to step 3:
458 can be fit into 763 1 times, resulting in a remainder of 305.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 458 from 763 to get 305.
Take the next digit (9) from the dividend and append it to 305, then repeat: 3059 / 458

Moving on to step 4:
3059 divided by 458 is 6 with a remainder of 311.
The next digit of our result is 6. 
Result so far: 16.0
If we take 2748 away from 3059, we end up with 311.
Fetch the next digit (1) from the dividend, attach it to 311 and continue: 3111 / 458

Advancing to step 5:
When dividing 3111 by 458, we get 6 with a remainder of 363.
Write down 6 as next digit of the result. 
Result so far: 166.0
The remainder is 363 after subtracting 2748 from 3111.
Grab the next digit (7) from the dividend, add it to 363, then carry on: 3637 / 458

Step 6:
When dividing 3637 by 458, we get 7 with a remainder of 431.
The next digit of our result is 7. 
Result so far: 1667.0
If we subtract 3206 from 3637, we get 431.
Grab the next digit (8) from the dividend, add it to 431, then carry on: 4318 / 458

On to step 7:
If we divide 4318 by 458, we get 9 and a remainder of 196.
Write down 9 as next digit of the result. 
Result so far: 16679.0
Deduct 4122 from 4318 and we're left with 196.
Grab the next digit (1) from the dividend, add it to 196, then carry on: 1961 / 458

Step 8:
1961 divided by 458 is 4 with a remainder of 129.
Record the quotient 4 as the next digit in the result. 
Result so far: 166794.0
The remainder is 129 after subtracting 1832 from 1961.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1290, and continue the process.

Advancing to step 9:
When dividing 1290 by 458, we get 2 with a remainder of 374.
Record the quotient 2 as the next digit in the result. 
Result so far: 166794.2
Deduct 916 from 1290 and we're left with 374.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3740, and continue the process.

Let's proceed to step 10:
458 can be fit into 3740 8 times, resulting in a remainder of 76.
The next digit of our result is 8. 
Result so far: 166794.28
If we take 3664 away from 3740, we end up with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 11:
760 divided by 458 is 1 with a remainder of 302.
Put 1 as the next digit of the answer. 
Result so far: 166794.281
If we take 458 away from 760, we end up with 302.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3020, and continue the process.

Advancing to step 12:
When dividing 3020 by 458, we get 6 with a remainder of 272.
Use 6 as the next digit of our solution. 
Result so far: 166794.2816
The remainder is 272 after subtracting 2748 from 3020.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

On to step 13:
The number 458 fits into 2720 5 times, leaving a remainder of 430.
Record the quotient 5 as the next digit in the result. 
Result so far: 166794.28165
Subtracting 2290 from 2720 leaves us with 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4300, and continue the process.

Advancing to step 14:
When dividing 4300 by 458, we get 9 with a remainder of 178.
Put 9 as the next digit of the answer. 
Result so far: 166794.281659
Deduct 4122 from 4300 and we're left with 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

Step 15:
1780 divided by 458 is 3 with a remainder of 406.
The next digit of our result is 3. 
Result so far: 166794.2816593
If we take 1374 away from 1780, we end up with 406.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4060, and continue the process.

On to step 16:
If we divide 4060 by 458, we get 8 and a remainder of 396.
Write down 8 as next digit of the result. 
Result so far: 166794.28165938
Subtract 3664 from 4060 to get 396.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3960, and continue the process.

After the division, we end up with 166794.28165938 and a remainder of 3.96e-07.