86145358 divided by 448 
We want to figure out the number of times 86145358 can be divided by 448.

Advancing to step 1:
When dividing 8 by 448, we get 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 448

Advancing to step 2:
448 goes into 86 0 times with a remainder of 86.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 86 leaves us with 86.
Fetch the next digit (1) from the dividend, attach it to 86 and continue: 861 / 448

Moving on to step 3:
448 goes into 861 1 times with a remainder of 413.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 448 from 861 leaves us with 413.
Take the next digit (4) from the dividend and append it to 413, then repeat: 4134 / 448

On to step 4:
4134 divided by 448 is 9 with a remainder of 102.
The number 9 becomes the next digit in our result. 
Result so far: 19.0
Deduct 4032 from 4134 and we're left with 102.
Append the next digit (5) from the dividend to 102 and continue with: 1025 / 448

On to step 5:
1025 divided by 448 is 2 with a remainder of 129.
Put 2 as the next digit of the answer. 
Result so far: 192.0
Deduct 896 from 1025 and we're left with 129.
Bring next digit (3) of the dividend behind the 129 and repeat the process: 1293 / 448

On to step 6:
When dividing 1293 by 448, we get 2 with a remainder of 397.
Use 2 as the next digit of our solution. 
Result so far: 1922.0
If we take 896 away from 1293, we end up with 397.
Include the next digit (5) from the dividend after 397, then repeat: 3975 / 448

Let's proceed to step 7:
448 can be fit into 3975 8 times, resulting in a remainder of 391.
Put 8 as the next digit of the answer. 
Result so far: 19228.0
The remainder is 391 after subtracting 3584 from 3975.
Bring next digit (8) of the dividend behind the 391 and repeat the process: 3918 / 448

On to step 8:
448 goes into 3918 8 times with a remainder of 334.
The number 8 becomes the next digit in our result. 
Result so far: 192288.0
Subtracting 3584 from 3918 leaves us with 334.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3340, and continue the process.

Moving on to step 9:
The number 448 fits into 3340 7 times, leaving a remainder of 204.
Use 7 as the next digit of our solution. 
Result so far: 192288.7
Subtracting 3136 from 3340 leaves us with 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

On to step 10:
448 goes into 2040 4 times with a remainder of 248.
Write down 4 as next digit of the result. 
Result so far: 192288.74
The remainder is 248 after subtracting 1792 from 2040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

Going ahead to step 11:
The number 448 fits into 2480 5 times, leaving a remainder of 240.
Record the quotient 5 as the next digit in the result. 
Result so far: 192288.745
Deduct 2240 from 2480 and we're left with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Step 12:
448 goes into 2400 5 times with a remainder of 160.
Use 5 as the next digit of our solution. 
Result so far: 192288.7455
If we subtract 2240 from 2400, we get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

After the division, we end up with 192288.7455 and a remainder of 0.0016.