66394143 ÷ 248 
The aim is to understand the frequency of 248 in 66394143.

Let's proceed to step 1:
The number 248 fits into 6 0 times, leaving a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 248

Advancing to step 2:
66 divided by 248 is 0 with a remainder of 66.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Append the next digit (3) from the dividend to 66 and continue with: 663 / 248

Going ahead to step 3:
If we divide 663 by 248, we get 2 and a remainder of 167.
The next digit of our result is 2. 
Result so far: 2.0
The remainder is 167 after subtracting 496 from 663.
Fetch the next digit (9) from the dividend, attach it to 167 and continue: 1679 / 248

Moving on to step 4:
The number 248 fits into 1679 6 times, leaving a remainder of 191.
Use 6 as the next digit of our solution. 
Result so far: 26.0
If we take 1488 away from 1679, we end up with 191.
Bring next digit (4) of the dividend behind the 191 and repeat the process: 1914 / 248

Step 5:
When dividing 1914 by 248, we get 7 with a remainder of 178.
Record the quotient 7 as the next digit in the result. 
Result so far: 267.0
Subtract 1736 from 1914 to get 178.
Bring next digit (1) of the dividend behind the 178 and repeat the process: 1781 / 248

Let's proceed to step 6:
The number 248 fits into 1781 7 times, leaving a remainder of 45.
Use 7 as the next digit of our solution. 
Result so far: 2677.0
If we subtract 1736 from 1781, we get 45.
Include the next digit (4) from the dividend after 45, then repeat: 454 / 248

On to step 7:
248 can be fit into 454 1 times, resulting in a remainder of 206.
The number 1 becomes the next digit in our result. 
Result so far: 26771.0
Deduct 248 from 454 and we're left with 206.
Include the next digit (3) from the dividend after 206, then repeat: 2063 / 248

Let's proceed to step 8:
If we divide 2063 by 248, we get 8 and a remainder of 79.
The number 8 becomes the next digit in our result. 
Result so far: 267718.0
Deduct 1984 from 2063 and we're left with 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Going ahead to step 9:
790 divided by 248 is 3 with a remainder of 46.
Record the quotient 3 as the next digit in the result. 
Result so far: 267718.3
Subtracting 744 from 790 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 10:
248 can be fit into 460 1 times, resulting in a remainder of 212.
Record the quotient 1 as the next digit in the result. 
Result so far: 267718.31
Subtract 248 from 460 to get 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Let's proceed to step 11:
If we divide 2120 by 248, we get 8 and a remainder of 136.
Record the quotient 8 as the next digit in the result. 
Result so far: 267718.318
Subtract 1984 from 2120 to get 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Going ahead to step 12:
The number 248 fits into 1360 5 times, leaving a remainder of 120.
The next digit of our result is 5. 
Result so far: 267718.3185
The remainder is 120 after subtracting 1240 from 1360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Step 13:
248 goes into 1200 4 times with a remainder of 208.
Record the quotient 4 as the next digit in the result. 
Result so far: 267718.31854
Subtracting 992 from 1200 leaves us with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Let's proceed to step 14:
248 goes into 2080 8 times with a remainder of 96.
The number 8 becomes the next digit in our result. 
Result so far: 267718.318548
If we subtract 1984 from 2080, we get 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Moving on to step 15:
If we divide 960 by 248, we get 3 and a remainder of 216.
Write down 3 as next digit of the result. 
Result so far: 267718.3185483
Subtracting 744 from 960 leaves us with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Let's proceed to step 16:
When dividing 2160 by 248, we get 8 with a remainder of 176.
The number 8 becomes the next digit in our result. 
Result so far: 267718.31854838
If we take 1984 away from 2160, we end up with 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

The quotient of the division is 267718.31854838, and the remainder is 1.76e-07.