85221148 ÷ 343 
We want to divide 85221148 by 343.

On to step 1:
If we divide 8 by 343, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (5) from the dividend, attach it to 8 and continue: 85 / 343

Step 2:
When dividing 85 by 343, we get 0 with a remainder of 85.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 85 leaves us with 85.
Append the next digit (2) from the dividend to 85 and continue with: 852 / 343

Advancing to step 3:
The number 343 fits into 852 2 times, leaving a remainder of 166.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtracting 686 from 852 leaves us with 166.
Include the next digit (2) from the dividend after 166, then repeat: 1662 / 343

Advancing to step 4:
The number 343 fits into 1662 4 times, leaving a remainder of 290.
Put 4 as the next digit of the answer. 
Result so far: 24.0
Subtracting 1372 from 1662 leaves us with 290.
Include the next digit (1) from the dividend after 290, then repeat: 2901 / 343

On to step 5:
343 can be fit into 2901 8 times, resulting in a remainder of 157.
Use 8 as the next digit of our solution. 
Result so far: 248.0
Subtract 2744 from 2901 to get 157.
Grab the next digit (1) from the dividend, add it to 157, then carry on: 1571 / 343

Step 6:
The number 343 fits into 1571 4 times, leaving a remainder of 199.
Record the quotient 4 as the next digit in the result. 
Result so far: 2484.0
Deduct 1372 from 1571 and we're left with 199.
Append the next digit (4) from the dividend to 199 and continue with: 1994 / 343

Let's proceed to step 7:
1994 divided by 343 is 5 with a remainder of 279.
The next digit of our result is 5. 
Result so far: 24845.0
Subtract 1715 from 1994 to get 279.
Take the next digit (8) from the dividend and append it to 279, then repeat: 2798 / 343

Moving on to step 8:
If we divide 2798 by 343, we get 8 and a remainder of 54.
Write down 8 as next digit of the result. 
Result so far: 248458.0
Deduct 2744 from 2798 and we're left with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

On to step 9:
343 goes into 540 1 times with a remainder of 197.
Use 1 as the next digit of our solution. 
Result so far: 248458.1
The remainder is 197 after subtracting 343 from 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1970, and continue the process.

Advancing to step 10:
343 can be fit into 1970 5 times, resulting in a remainder of 255.
Put 5 as the next digit of the answer. 
Result so far: 248458.15
If we take 1715 away from 1970, we end up with 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

Step 11:
343 can be fit into 2550 7 times, resulting in a remainder of 149.
Write down 7 as next digit of the result. 
Result so far: 248458.157
If we take 2401 away from 2550, we end up with 149.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1490, and continue the process.

Moving on to step 12:
343 goes into 1490 4 times with a remainder of 118.
The number 4 becomes the next digit in our result. 
Result so far: 248458.1574
The remainder is 118 after subtracting 1372 from 1490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Let's proceed to step 13:
343 goes into 1180 3 times with a remainder of 151.
The number 3 becomes the next digit in our result. 
Result so far: 248458.15743
If we take 1029 away from 1180, we end up with 151.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1510, and continue the process.

Step 14:
343 can be fit into 1510 4 times, resulting in a remainder of 138.
Use 4 as the next digit of our solution. 
Result so far: 248458.157434
If we take 1372 away from 1510, we end up with 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

Let's proceed to step 15:
343 goes into 1380 4 times with a remainder of 8.
Write down 4 as next digit of the result. 
Result so far: 248458.1574344
Deduct 1372 from 1380 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final result is 248458.1574344 with a remainder of 8e-08.