71015471 ÷ 448 
The aim is to understand the frequency of 448 in 71015471.

Let's proceed to step 1:
448 goes into 7 0 times with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Grab the next digit (1) from the dividend, add it to 7, then carry on: 71 / 448

Advancing to step 2:
When dividing 71 by 448, we get 0 with a remainder of 71.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 71 to get 71.
Take the next digit (0) from the dividend and append it to 71, then repeat: 710 / 448

Advancing to step 3:
The number 448 fits into 710 1 times, leaving a remainder of 262.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 448 from 710, we get 262.
Include the next digit (1) from the dividend after 262, then repeat: 2621 / 448

Step 4:
448 goes into 2621 5 times with a remainder of 381.
Put 5 as the next digit of the answer. 
Result so far: 15.0
Deduct 2240 from 2621 and we're left with 381.
Append the next digit (5) from the dividend to 381 and continue with: 3815 / 448

Let's proceed to step 5:
448 goes into 3815 8 times with a remainder of 231.
The next digit of our result is 8. 
Result so far: 158.0
The remainder is 231 after subtracting 3584 from 3815.
Append the next digit (4) from the dividend to 231 and continue with: 2314 / 448

Advancing to step 6:
When dividing 2314 by 448, we get 5 with a remainder of 74.
The next digit of our result is 5. 
Result so far: 1585.0
Subtract 2240 from 2314 to get 74.
Append the next digit (7) from the dividend to 74 and continue with: 747 / 448

On to step 7:
448 goes into 747 1 times with a remainder of 299.
Write down 1 as next digit of the result. 
Result so far: 15851.0
Subtract 448 from 747 to get 299.
Include the next digit (1) from the dividend after 299, then repeat: 2991 / 448

Let's proceed to step 8:
448 goes into 2991 6 times with a remainder of 303.
Put 6 as the next digit of the answer. 
Result so far: 158516.0
Subtract 2688 from 2991 to get 303.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3030, and continue the process.

Advancing to step 9:
448 can be fit into 3030 6 times, resulting in a remainder of 342.
Use 6 as the next digit of our solution. 
Result so far: 158516.6
The remainder is 342 after subtracting 2688 from 3030.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3420, and continue the process.

Let's proceed to step 10:
If we divide 3420 by 448, we get 7 and a remainder of 284.
Write down 7 as next digit of the result. 
Result so far: 158516.67
Deduct 3136 from 3420 and we're left with 284.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2840, and continue the process.

On to step 11:
When dividing 2840 by 448, we get 6 with a remainder of 152.
Write down 6 as next digit of the result. 
Result so far: 158516.676
If we subtract 2688 from 2840, we get 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

On to step 12:
If we divide 1520 by 448, we get 3 and a remainder of 176.
Record the quotient 3 as the next digit in the result. 
Result so far: 158516.6763
If we subtract 1344 from 1520, we get 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Let's proceed to step 13:
448 goes into 1760 3 times with a remainder of 416.
Write down 3 as next digit of the result. 
Result so far: 158516.67633
The remainder is 416 after subtracting 1344 from 1760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4160, and continue the process.

The final outcome is 158516.67633, with a leftover of 0.000416.