86474673 ÷ 345 
Our goal is to divide 86474673 by 345.

Let's proceed to step 1:
When dividing 8 by 345, we get 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 345

Going ahead to step 2:
345 goes into 86 0 times with a remainder of 86.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 86 to get 86.
Include the next digit (4) from the dividend after 86, then repeat: 864 / 345

Moving on to step 3:
When dividing 864 by 345, we get 2 with a remainder of 174.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
The remainder is 174 after subtracting 690 from 864.
Grab the next digit (7) from the dividend, add it to 174, then carry on: 1747 / 345

Moving on to step 4:
345 can be fit into 1747 5 times, resulting in a remainder of 22.
The next digit of our result is 5. 
Result so far: 25.0
Subtracting 1725 from 1747 leaves us with 22.
Include the next digit (4) from the dividend after 22, then repeat: 224 / 345

On to step 5:
The number 345 fits into 224 0 times, leaving a remainder of 224.
The number 0 becomes the next digit in our result. 
Result so far: 250.0
Subtract 0 from 224 to get 224.
Append the next digit (6) from the dividend to 224 and continue with: 2246 / 345

Let's proceed to step 6:
If we divide 2246 by 345, we get 6 and a remainder of 176.
The next digit of our result is 6. 
Result so far: 2506.0
Subtracting 2070 from 2246 leaves us with 176.
Fetch the next digit (7) from the dividend, attach it to 176 and continue: 1767 / 345

Let's proceed to step 7:
The number 345 fits into 1767 5 times, leaving a remainder of 42.
Put 5 as the next digit of the answer. 
Result so far: 25065.0
Subtracting 1725 from 1767 leaves us with 42.
Bring next digit (3) of the dividend behind the 42 and repeat the process: 423 / 345

Step 8:
423 divided by 345 is 1 with a remainder of 78.
The number 1 becomes the next digit in our result. 
Result so far: 250651.0
If we take 345 away from 423, we end up with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Going ahead to step 9:
If we divide 780 by 345, we get 2 and a remainder of 90.
The next digit of our result is 2. 
Result so far: 250651.2
Deduct 690 from 780 and we're left with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Step 10:
When dividing 900 by 345, we get 2 with a remainder of 210.
Put 2 as the next digit of the answer. 
Result so far: 250651.22
Subtract 690 from 900 to get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

In conclusion, the division gives 250651.22 with a balance of 0.21.