48897066 ÷ 391 
The aim is to understand the frequency of 391 in 48897066.

Advancing to step 1:
391 goes into 4 0 times with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Grab the next digit (8) from the dividend, add it to 4, then carry on: 48 / 391

Step 2:
The number 391 fits into 48 0 times, leaving a remainder of 48.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 48, we end up with 48.
Take the next digit (8) from the dividend and append it to 48, then repeat: 488 / 391

Let's proceed to step 3:
When dividing 488 by 391, we get 1 with a remainder of 97.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 97 after subtracting 391 from 488.
Take the next digit (9) from the dividend and append it to 97, then repeat: 979 / 391

Moving on to step 4:
391 goes into 979 2 times with a remainder of 197.
Write down 2 as next digit of the result. 
Result so far: 12.0
The remainder is 197 after subtracting 782 from 979.
Include the next digit (7) from the dividend after 197, then repeat: 1977 / 391

Moving on to step 5:
If we divide 1977 by 391, we get 5 and a remainder of 22.
The next digit of our result is 5. 
Result so far: 125.0
Deduct 1955 from 1977 and we're left with 22.
Include the next digit (0) from the dividend after 22, then repeat: 220 / 391

Advancing to step 6:
If we divide 220 by 391, we get 0 and a remainder of 220.
Put 0 as the next digit of the answer. 
Result so far: 1250.0
Deduct 0 from 220 and we're left with 220.
Fetch the next digit (6) from the dividend, attach it to 220 and continue: 2206 / 391

Advancing to step 7:
If we divide 2206 by 391, we get 5 and a remainder of 251.
Record the quotient 5 as the next digit in the result. 
Result so far: 12505.0
Subtracting 1955 from 2206 leaves us with 251.
Include the next digit (6) from the dividend after 251, then repeat: 2516 / 391

Let's proceed to step 8:
If we divide 2516 by 391, we get 6 and a remainder of 170.
The next digit of our result is 6. 
Result so far: 125056.0
Subtract 2346 from 2516 to get 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

On to step 9:
The number 391 fits into 1700 4 times, leaving a remainder of 136.
The next digit of our result is 4. 
Result so far: 125056.4
The remainder is 136 after subtracting 1564 from 1700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Moving on to step 10:
391 goes into 1360 3 times with a remainder of 187.
Put 3 as the next digit of the answer. 
Result so far: 125056.43
Subtract 1173 from 1360 to get 187.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1870, and continue the process.

Step 11:
391 goes into 1870 4 times with a remainder of 306.
The next digit of our result is 4. 
Result so far: 125056.434
Deduct 1564 from 1870 and we're left with 306.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3060, and continue the process.

Going ahead to step 12:
The number 391 fits into 3060 7 times, leaving a remainder of 323.
The next digit of our result is 7. 
Result so far: 125056.4347
If we take 2737 away from 3060, we end up with 323.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3230, and continue the process.

On to step 13:
391 goes into 3230 8 times with a remainder of 102.
Use 8 as the next digit of our solution. 
Result so far: 125056.43478
Deduct 3128 from 3230 and we're left with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Step 14:
1020 divided by 391 is 2 with a remainder of 238.
Record the quotient 2 as the next digit in the result. 
Result so far: 125056.434782
If we subtract 782 from 1020, we get 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

On to step 15:
When dividing 2380 by 391, we get 6 with a remainder of 34.
Use 6 as the next digit of our solution. 
Result so far: 125056.4347826
Subtract 2346 from 2380 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 16:
The number 391 fits into 340 0 times, leaving a remainder of 340.
Record the quotient 0 as the next digit in the result. 
Result so far: 125056.4347826
If we take 0 away from 340, we end up with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

The final outcome is 125056.4347826, with a leftover of 3.4e-07.