85257290 ÷ 208 
Our goal is to divide 85257290 by 208.

Step 1:
208 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 208

Step 2:
208 can be fit into 85 0 times, resulting in a remainder of 85.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 85 to get 85.
Include the next digit (2) from the dividend after 85, then repeat: 852 / 208

Step 3:
If we divide 852 by 208, we get 4 and a remainder of 20.
Write down 4 as next digit of the result. 
Result so far: 4.0
The remainder is 20 after subtracting 832 from 852.
Include the next digit (5) from the dividend after 20, then repeat: 205 / 208

On to step 4:
When dividing 205 by 208, we get 0 with a remainder of 205.
Use 0 as the next digit of our solution. 
Result so far: 40.0
Deduct 0 from 205 and we're left with 205.
Include the next digit (7) from the dividend after 205, then repeat: 2057 / 208

Moving on to step 5:
The number 208 fits into 2057 9 times, leaving a remainder of 185.
The next digit of our result is 9. 
Result so far: 409.0
Deduct 1872 from 2057 and we're left with 185.
Fetch the next digit (2) from the dividend, attach it to 185 and continue: 1852 / 208

Advancing to step 6:
The number 208 fits into 1852 8 times, leaving a remainder of 188.
Put 8 as the next digit of the answer. 
Result so far: 4098.0
The remainder is 188 after subtracting 1664 from 1852.
Bring next digit (9) of the dividend behind the 188 and repeat the process: 1889 / 208

On to step 7:
1889 divided by 208 is 9 with a remainder of 17.
The number 9 becomes the next digit in our result. 
Result so far: 40989.0
Deduct 1872 from 1889 and we're left with 17.
Include the next digit (0) from the dividend after 17, then repeat: 170 / 208

Step 8:
If we divide 170 by 208, we get 0 and a remainder of 170.
The next digit of our result is 0. 
Result so far: 409890.0
Deduct 0 from 170 and we're left with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Let's proceed to step 9:
When dividing 1700 by 208, we get 8 with a remainder of 36.
Record the quotient 8 as the next digit in the result. 
Result so far: 409890.8
Subtracting 1664 from 1700 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 10:
208 goes into 360 1 times with a remainder of 152.
The next digit of our result is 1. 
Result so far: 409890.81
Subtract 208 from 360 to 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.

Let's proceed to step 11:
If we divide 1520 by 208, we get 7 and a remainder of 64.
The number 7 becomes the next digit in our result. 
Result so far: 409890.817
If we take 1456 away from 1520, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 12:
If we divide 640 by 208, we get 3 and a remainder of 16.
Write down 3 as next digit of the result. 
Result so far: 409890.8173
If we subtract 624 from 640, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 13:
The number 208 fits into 160 0 times, leaving a remainder of 160.
Write down 0 as next digit of the result. 
Result so far: 409890.8173
If we subtract 0 from 160, 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.

Advancing to step 14:
When dividing 1600 by 208, we get 7 with a remainder of 144.
Record the quotient 7 as the next digit in the result. 
Result so far: 409890.817307
Subtracting 1456 from 1600 leaves us with 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Moving on to step 15:
If we divide 1440 by 208, we get 6 and a remainder of 192.
The next digit of our result is 6. 
Result so far: 409890.8173076
Subtract 1248 from 1440 to get 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Step 16:
208 can be fit into 1920 9 times, resulting in a remainder of 48.
Put 9 as the next digit of the answer. 
Result so far: 409890.81730769
If we subtract 1872 from 1920, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

In conclusion, the division gives 409890.81730769 with a balance of 4.8e-08.