We divide 12278239 by 974
We want to figure out the number of times 12278239 can be divided by 974.

Moving on to step 1:
When dividing 1 by 974, we get 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 974

On to step 2:
12 divided by 974 is 0 with a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Fetch the next digit (2) from the dividend, attach it to 12 and continue: 122 / 974

Step 3:
974 can be fit into 122 0 times, resulting in a remainder of 122.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 122 after subtracting 0 from 122.
Take the next digit (7) from the dividend and append it to 122, then repeat: 1227 / 974

Advancing to step 4:
When dividing 1227 by 974, we get 1 with a remainder of 253.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 974 from 1227, we get 253.
Bring next digit (8) of the dividend behind the 253 and repeat the process: 2538 / 974

Going ahead to step 5:
974 can be fit into 2538 2 times, resulting in a remainder of 590.
Write down 2 as next digit of the result. 
Result so far: 12.0
If we subtract 1948 from 2538, we get 590.
Grab the next digit (2) from the dividend, add it to 590, then carry on: 5902 / 974

Let's proceed to step 6:
974 goes into 5902 6 times with a remainder of 58.
The next digit of our result is 6. 
Result so far: 126.0
If we take 5844 away from 5902, we end up with 58.
Fetch the next digit (3) from the dividend, attach it to 58 and continue: 583 / 974

Advancing to step 7:
The number 974 fits into 583 0 times, leaving a remainder of 583.
The number 0 becomes the next digit in our result. 
Result so far: 1260.0
Subtract 0 from 583 to get 583.
Append the next digit (9) from the dividend to 583 and continue with: 5839 / 974

Going ahead to step 8:
If we divide 5839 by 974, we get 5 and a remainder of 969.
Write down 5 as next digit of the result. 
Result so far: 12605.0
The remainder is 969 after subtracting 4870 from 5839.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9690, and continue the process.

Advancing to step 9:
974 goes into 9690 9 times with a remainder of 924.
The number 9 becomes the next digit in our result. 
Result so far: 12605.9
If we take 8766 away from 9690, we end up with 924.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9240, and continue the process.

Moving on to step 10:
974 can be fit into 9240 9 times, resulting in a remainder of 474.
Write down 9 as next digit of the result. 
Result so far: 12605.99
The remainder is 474 after subtracting 8766 from 9240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4740, and continue the process.

The final outcome is 12605.99, with a leftover of 0.474.