We look at the division of 74638521 by 506 
Our goal is to divide 74638521 by 506.

Step 1:
7 divided by 506 is 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Bring next digit (4) of the dividend behind the 7 and repeat the process: 74 / 506

Moving on to step 2:
506 can be fit into 74 0 times, resulting in a remainder of 74.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 74 after subtracting 0 from 74.
Grab the next digit (6) from the dividend, add it to 74, then carry on: 746 / 506

Step 3:
746 divided by 506 is 1 with a remainder of 240.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 506 away from 746, we end up with 240.
Bring next digit (3) of the dividend behind the 240 and repeat the process: 2403 / 506

Step 4:
The number 506 fits into 2403 4 times, leaving a remainder of 379.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
Deduct 2024 from 2403 and we're left with 379.
Grab the next digit (8) from the dividend, add it to 379, then carry on: 3798 / 506

Moving on to step 5:
The number 506 fits into 3798 7 times, leaving a remainder of 256.
Record the quotient 7 as the next digit in the result. 
Result so far: 147.0
Subtracting 3542 from 3798 leaves us with 256.
Take the next digit (5) from the dividend and append it to 256, then repeat: 2565 / 506

Advancing to step 6:
The number 506 fits into 2565 5 times, leaving a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 1475.0
The remainder is 35 after subtracting 2530 from 2565.
Fetch the next digit (2) from the dividend, attach it to 35 and continue: 352 / 506

Going ahead to step 7:
506 can be fit into 352 0 times, resulting in a remainder of 352.
The number 0 becomes the next digit in our result. 
Result so far: 14750.0
If we subtract 0 from 352, we get 352.
Take the next digit (1) from the dividend and append it to 352, then repeat: 3521 / 506

Advancing to step 8:
The number 506 fits into 3521 6 times, leaving a remainder of 485.
The next digit of our result is 6. 
Result so far: 147506.0
Deduct 3036 from 3521 and we're left with 485.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4850, and continue the process.

Advancing to step 9:
506 goes into 4850 9 times with a remainder of 296.
The next digit of our result is 9. 
Result so far: 147506.9
The remainder is 296 after subtracting 4554 from 4850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Advancing to step 10:
The number 506 fits into 2960 5 times, leaving a remainder of 430.
The number 5 becomes the next digit in our result. 
Result so far: 147506.95
If we subtract 2530 from 2960, we get 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4300, and continue the process.

Step 11:
506 can be fit into 4300 8 times, resulting in a remainder of 252.
The next digit of our result is 8. 
Result so far: 147506.958
If we take 4048 away from 4300, we end up with 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

Going ahead to step 12:
When dividing 2520 by 506, we get 4 with a remainder of 496.
Put 4 as the next digit of the answer. 
Result so far: 147506.9584
If we take 2024 away from 2520, we end up with 496.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4960, and continue the process.

Advancing to step 13:
The number 506 fits into 4960 9 times, leaving a remainder of 406.
Write down 9 as next digit of the result. 
Result so far: 147506.95849
If we subtract 4554 from 4960, we get 406.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4060, and continue the process.

Moving on to step 14:
When dividing 4060 by 506, we get 8 with a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 147506.958498
The remainder is 12 after subtracting 4048 from 4060.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 15:
When dividing 120 by 506, we get 0 with a remainder of 120.
The number 0 becomes the next digit in our result. 
Result so far: 147506.958498
Subtracting 0 from 120 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Moving on to step 16:
506 can be fit into 1200 2 times, resulting in a remainder of 188.
Use 2 as the next digit of our solution. 
Result so far: 147506.95849802
The remainder is 188 after subtracting 1012 from 1200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

The final outcome is 147506.95849802, with a leftover of 1.88e-07.