We're dividing 85066579 by 406 
Our goal is to divide 85066579 by 406.

On to step 1:
406 goes into 8 0 times with 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.
Take the next digit (5) from the dividend and append it to 8, then repeat: 85 / 406

Advancing to step 2:
85 divided by 406 is 0 with a remainder of 85.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 85 leaves us with 85.
Fetch the next digit (0) from the dividend, attach it to 85 and continue: 850 / 406

On to step 3:
If we divide 850 by 406, we get 2 and a remainder of 38.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 812 from 850 leaves us with 38.
Fetch the next digit (6) from the dividend, attach it to 38 and continue: 386 / 406

Step 4:
The number 406 fits into 386 0 times, leaving a remainder of 386.
Record the quotient 0 as the next digit in the result. 
Result so far: 20.0
Subtract 0 from 386 to get 386.
Append the next digit (6) from the dividend to 386 and continue with: 3866 / 406

On to step 5:
If we divide 3866 by 406, we get 9 and a remainder of 212.
Use 9 as the next digit of our solution. 
Result so far: 209.0
If we subtract 3654 from 3866, we get 212.
Take the next digit (5) from the dividend and append it to 212, then repeat: 2125 / 406

Step 6:
2125 divided by 406 is 5 with a remainder of 95.
Use 5 as the next digit of our solution. 
Result so far: 2095.0
Subtract 2030 from 2125 to get 95.
Include the next digit (7) from the dividend after 95, then repeat: 957 / 406

Advancing to step 7:
406 goes into 957 2 times with a remainder of 145.
Use 2 as the next digit of our solution. 
Result so far: 20952.0
Deduct 812 from 957 and we're left with 145.
Append the next digit (9) from the dividend to 145 and continue with: 1459 / 406

Going ahead to step 8:
If we divide 1459 by 406, we get 3 and a remainder of 241.
The number 3 becomes the next digit in our result. 
Result so far: 209523.0
The remainder is 241 after subtracting 1218 from 1459.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

Let's proceed to step 9:
406 can be fit into 2410 5 times, resulting in a remainder of 380.
Record the quotient 5 as the next digit in the result. 
Result so far: 209523.5
Subtracting 2030 from 2410 leaves us with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Let's proceed to step 10:
3800 divided by 406 is 9 with a remainder of 146.
The next digit of our result is 9. 
Result so far: 209523.59
If we take 3654 away from 3800, we end up with 146.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1460, and continue the process.

Going ahead to step 11:
406 can be fit into 1460 3 times, resulting in a remainder of 242.
Record the quotient 3 as the next digit in the result. 
Result so far: 209523.593
If we subtract 1218 from 1460, we get 242.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2420, and continue the process.

Let's proceed to step 12:
The number 406 fits into 2420 5 times, leaving a remainder of 390.
The next digit of our result is 5. 
Result so far: 209523.5935
Subtracting 2030 from 2420 leaves us with 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

On to step 13:
3900 divided by 406 is 9 with a remainder of 246.
Use 9 as the next digit of our solution. 
Result so far: 209523.59359
If we take 3654 away from 3900, we end up with 246.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

Moving on to step 14:
406 goes into 2460 6 times with a remainder of 24.
Record the quotient 6 as the next digit in the result. 
Result so far: 209523.593596
Subtracting 2436 from 2460 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 15:
When dividing 240 by 406, we get 0 with a remainder of 240.
Use 0 as the next digit of our solution. 
Result so far: 209523.593596
Deduct 0 from 240 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.

On to step 16:
2400 divided by 406 is 5 with a remainder of 370.
The number 5 becomes the next digit in our result. 
Result so far: 209523.59359605
Deduct 2030 from 2400 and we're left with 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

The final outcome is 209523.59359605, with a leftover of 3.7e-07.