We're dividing 42578437 by 978 
Our goal is to divide 42578437 by 978.

Step 1:
978 goes into 4 0 times with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 978

Advancing to step 2:
978 goes into 42 0 times with a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 42 after subtracting 0 from 42.
Fetch the next digit (5) from the dividend, attach it to 42 and continue: 425 / 978

Step 3:
If we divide 425 by 978, we get 0 and a remainder of 425.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 425, we end up with 425.
Append the next digit (7) from the dividend to 425 and continue with: 4257 / 978

Step 4:
978 can be fit into 4257 4 times, resulting in a remainder of 345.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtract 3912 from 4257 to get 345.
Take the next digit (8) from the dividend and append it to 345, then repeat: 3458 / 978

Moving on to step 5:
If we divide 3458 by 978, we get 3 and a remainder of 524.
Write down 3 as next digit of the result. 
Result so far: 43.0
Subtracting 2934 from 3458 leaves us with 524.
Include the next digit (4) from the dividend after 524, then repeat: 5244 / 978

Going ahead to step 6:
The number 978 fits into 5244 5 times, leaving a remainder of 354.
The number 5 becomes the next digit in our result. 
Result so far: 435.0
If we subtract 4890 from 5244, we get 354.
Fetch the next digit (3) from the dividend, attach it to 354 and continue: 3543 / 978

On to step 7:
If we divide 3543 by 978, we get 3 and a remainder of 609.
The number 3 becomes the next digit in our result. 
Result so far: 4353.0
Deduct 2934 from 3543 and we're left with 609.
Grab the next digit (7) from the dividend, add it to 609, then carry on: 6097 / 978

Going ahead to step 8:
When dividing 6097 by 978, we get 6 with a remainder of 229.
Record the quotient 6 as the next digit in the result. 
Result so far: 43536.0
The remainder is 229 after subtracting 5868 from 6097.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2290, and continue the process.

Advancing to step 9:
978 can be fit into 2290 2 times, resulting in a remainder of 334.
Use 2 as the next digit of our solution. 
Result so far: 43536.2
If we take 1956 away from 2290, we end up with 334.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3340, and continue the process.

Step 10:
If we divide 3340 by 978, we get 3 and a remainder of 406.
Put 3 as the next digit of the answer. 
Result so far: 43536.23
The remainder is 406 after subtracting 2934 from 3340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4060, and continue the process.

Step 11:
978 can be fit into 4060 4 times, resulting in a remainder of 148.
The next digit of our result is 4. 
Result so far: 43536.234
If we take 3912 away from 4060, we end up with 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Step 12:
1480 divided by 978 is 1 with a remainder of 502.
Use 1 as the next digit of our solution. 
Result so far: 43536.2341
Subtract 978 from 1480 to get 502.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5020, and continue the process.

Going ahead to step 13:
978 can be fit into 5020 5 times, resulting in a remainder of 130.
The number 5 becomes the next digit in our result. 
Result so far: 43536.23415
Subtracting 4890 from 5020 leaves us with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Step 14:
978 goes into 1300 1 times with a remainder of 322.
Use 1 as the next digit of our solution. 
Result so far: 43536.234151
If we subtract 978 from 1300, we get 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

On to step 15:
If we divide 3220 by 978, we get 3 and a remainder of 286.
Use 3 as the next digit of our solution. 
Result so far: 43536.2341513
Subtracting 2934 from 3220 leaves us with 286.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2860, and continue the process.

Moving on to step 16:
978 can be fit into 2860 2 times, resulting in a remainder of 904.
Write down 2 as next digit of the result. 
Result so far: 43536.23415132
If we take 1956 away from 2860, we end up with 904.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9040, and continue the process.

After the division, we end up with 43536.23415132 and a remainder of 9.04e-07.