We're dividing 42163648 by 978 
We want to divide 42163648 by 978.

Advancing to step 1:
The number 978 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 978

Step 2:
If we divide 42 by 978, we get 0 and a remainder of 42.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 42 and we're left with 42.
Append the next digit (1) from the dividend to 42 and continue with: 421 / 978

Going ahead to step 3:
When dividing 421 by 978, we get 0 with a remainder of 421.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 421, we get 421.
Bring next digit (6) of the dividend behind the 421 and repeat the process: 4216 / 978

Going ahead to step 4:
978 can be fit into 4216 4 times, resulting in a remainder of 304.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Subtracting 3912 from 4216 leaves us with 304.
Take the next digit (3) from the dividend and append it to 304, then repeat: 3043 / 978

Advancing to step 5:
If we divide 3043 by 978, we get 3 and a remainder of 109.
Put 3 as the next digit of the answer. 
Result so far: 43.0
Subtracting 2934 from 3043 leaves us with 109.
Take the next digit (6) from the dividend and append it to 109, then repeat: 1096 / 978

Moving on to step 6:
When dividing 1096 by 978, we get 1 with a remainder of 118.
The next digit of our result is 1. 
Result so far: 431.0
Subtracting 978 from 1096 leaves us with 118.
Grab the next digit (4) from the dividend, add it to 118, then carry on: 1184 / 978

Moving on to step 7:
The number 978 fits into 1184 1 times, leaving a remainder of 206.
Use 1 as the next digit of our solution. 
Result so far: 4311.0
The remainder is 206 after subtracting 978 from 1184.
Append the next digit (8) from the dividend to 206 and continue with: 2068 / 978

Advancing to step 8:
2068 divided by 978 is 2 with a remainder of 112.
Put 2 as the next digit of the answer. 
Result so far: 43112.0
If we take 1956 away from 2068, we end up with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Step 9:
When dividing 1120 by 978, we get 1 with a remainder of 142.
Put 1 as the next digit of the answer. 
Result so far: 43112.1
Deduct 978 from 1120 and we're left with 142.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

Going ahead to step 10:
When dividing 1420 by 978, we get 1 with a remainder of 442.
Write down 1 as next digit of the result. 
Result so far: 43112.11
The remainder is 442 after subtracting 978 from 1420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4420, and continue the process.

The quotient of the division is 43112.11, and the remainder is 0.442.