85448286 ÷ 60 
Our goal is to divide 85448286 by 60.

Let's proceed to step 1:
The number 60 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Append the next digit (5) from the dividend to 8 and continue with: 85 / 60

On to step 2:
60 goes into 85 1 times with a remainder of 25.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 60 from 85 to get 25.
Grab the next digit (4) from the dividend, add it to 25, then carry on: 254 / 60

Moving on to step 3:
When dividing 254 by 60, we get 4 with a remainder of 14.
The next digit of our result is 4. 
Result so far: 14.0
Subtracting 240 from 254 leaves us with 14.
Include the next digit (4) from the dividend after 14, then repeat: 144 / 60

Going ahead to step 4:
60 can be fit into 144 2 times, resulting in a remainder of 24.
Put 2 as the next digit of the answer. 
Result so far: 142.0
Subtracting 120 from 144 leaves us with 24.
Fetch the next digit (8) from the dividend, attach it to 24 and continue: 248 / 60

Moving on to step 5:
When dividing 248 by 60, we get 4 with a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 1424.0
If we take 240 away from 248, we end up with 8.
Fetch the next digit (2) from the dividend, attach it to 8 and continue: 82 / 60

Step 6:
The number 60 fits into 82 1 times, leaving a remainder of 22.
Write down 1 as next digit of the result. 
Result so far: 14241.0
The remainder is 22 after subtracting 60 from 82.
Bring next digit (8) of the dividend behind the 22 and repeat the process: 228 / 60

Moving on to step 7:
60 can be fit into 228 3 times, resulting in a remainder of 48.
The number 3 becomes the next digit in our result. 
Result so far: 142413.0
The remainder is 48 after subtracting 180 from 228.
Bring next digit (6) of the dividend behind the 48 and repeat the process: 486 / 60

Advancing to step 8:
60 goes into 486 8 times with a remainder of 6.
Record the quotient 8 as the next digit in the result. 
Result so far: 1424138.0
If we take 480 away from 486, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 9:
If we divide 60 by 60, we get 1 and a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 1424138.1
If we subtract 60 from 60, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 10:
When dividing 0 by 60, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 1424138.1
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 11:
60 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 1424138.1
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 1424138.1, with a leftover of 0.0.