84185978 ÷ 189 
Our goal is to divide 84185978 by 189.

Advancing to step 1:
189 goes into 8 0 times with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (4) from the dividend, add it to 8, then carry on: 84 / 189

Moving on to step 2:
When dividing 84 by 189, we get 0 with a remainder of 84.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 84 leaves us with 84.
Bring next digit (1) of the dividend behind the 84 and repeat the process: 841 / 189

Step 3:
189 can be fit into 841 4 times, resulting in a remainder of 85.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Deduct 756 from 841 and we're left with 85.
Include the next digit (8) from the dividend after 85, then repeat: 858 / 189

Going ahead to step 4:
189 can be fit into 858 4 times, resulting in a remainder of 102.
Put 4 as the next digit of the answer. 
Result so far: 44.0
Subtracting 756 from 858 leaves us with 102.
Include the next digit (5) from the dividend after 102, then repeat: 1025 / 189

Advancing to step 5:
189 can be fit into 1025 5 times, resulting in a remainder of 80.
The next digit of our result is 5. 
Result so far: 445.0
Subtracting 945 from 1025 leaves us with 80.
Bring next digit (9) of the dividend behind the 80 and repeat the process: 809 / 189

Let's proceed to step 6:
The number 189 fits into 809 4 times, leaving a remainder of 53.
Use 4 as the next digit of our solution. 
Result so far: 4454.0
Deduct 756 from 809 and we're left with 53.
Fetch the next digit (7) from the dividend, attach it to 53 and continue: 537 / 189

On to step 7:
537 divided by 189 is 2 with a remainder of 159.
Record the quotient 2 as the next digit in the result. 
Result so far: 44542.0
Subtract 378 from 537 to get 159.
Append the next digit (8) from the dividend to 159 and continue with: 1598 / 189

Step 8:
The number 189 fits into 1598 8 times, leaving a remainder of 86.
The number 8 becomes the next digit in our result. 
Result so far: 445428.0
Deduct 1512 from 1598 and we're left with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Advancing to step 9:
If we divide 860 by 189, we get 4 and a remainder of 104.
Write down 4 as next digit of the result. 
Result so far: 445428.4
The remainder is 104 after subtracting 756 from 860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Going ahead to step 10:
The number 189 fits into 1040 5 times, leaving a remainder of 95.
Put 5 as the next digit of the answer. 
Result so far: 445428.45
The remainder is 95 after subtracting 945 from 1040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Advancing to step 11:
189 goes into 950 5 times with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 445428.455
Subtract 945 from 950 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

In conclusion, the division gives 445428.455 with a balance of 0.0005.