We're dividing 145521 by 74 
We're looking to find how many times 74 goes into 145521.

Let's proceed to step 1:
74 can be fit into 1 0 times, resulting in a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Grab the next digit (4) from the dividend, add it to 1, then carry on: 14 / 74

Let's proceed to step 2:
The number 74 fits into 14 0 times, leaving a remainder of 14.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 14, we end up with 14.
Include the next digit (5) from the dividend after 14, then repeat: 145 / 74

Advancing to step 3:
145 divided by 74 is 1 with a remainder of 71.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 74 from 145 and we're left with 71.
Take the next digit (5) from the dividend and append it to 71, then repeat: 715 / 74

Step 4:
If we divide 715 by 74, we get 9 and a remainder of 49.
Write down 9 as next digit of the result. 
Result so far: 19.0
The remainder is 49 after subtracting 666 from 715.
Include the next digit (2) from the dividend after 49, then repeat: 492 / 74

Going ahead to step 5:
74 goes into 492 6 times with a remainder of 48.
Write down 6 as next digit of the result. 
Result so far: 196.0
If we take 444 away from 492, we end up with 48.
Grab the next digit (1) from the dividend, add it to 48, then carry on: 481 / 74

On to step 6:
The number 74 fits into 481 6 times, leaving a remainder of 37.
The next digit of our result is 6. 
Result so far: 1966.0
If we take 444 away from 481, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Moving on to step 7:
When dividing 370 by 74, we get 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 1966.5
Deduct 370 from 370 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 8:
If we divide 0 by 74, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1966.5
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 9:
74 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1966.5
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 1966.5 with a remaining 0.0.