70189521 ÷ 581 
The aim is to understand the frequency of 581 in 70189521.

Advancing to step 1:
581 goes into 7 0 times with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Include the next digit (0) from the dividend after 7, then repeat: 70 / 581

Advancing to step 2:
581 goes into 70 0 times with a remainder of 70.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 70 and we're left with 70.
Bring next digit (1) of the dividend behind the 70 and repeat the process: 701 / 581

Moving on to step 3:
581 can be fit into 701 1 times, resulting in a remainder of 120.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 581 away from 701, we end up with 120.
Grab the next digit (8) from the dividend, add it to 120, then carry on: 1208 / 581

Moving on to step 4:
If we divide 1208 by 581, we get 2 and a remainder of 46.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Deduct 1162 from 1208 and we're left with 46.
Include the next digit (9) from the dividend after 46, then repeat: 469 / 581

On to step 5:
581 can be fit into 469 0 times, resulting in a remainder of 469.
Write down 0 as next digit of the result. 
Result so far: 120.0
Subtract 0 from 469 to get 469.
Grab the next digit (5) from the dividend, add it to 469, then carry on: 4695 / 581

Going ahead to step 6:
581 goes into 4695 8 times with a remainder of 47.
The number 8 becomes the next digit in our result. 
Result so far: 1208.0
Deduct 4648 from 4695 and we're left with 47.
Fetch the next digit (2) from the dividend, attach it to 47 and continue: 472 / 581

Moving on to step 7:
When dividing 472 by 581, we get 0 with a remainder of 472.
Use 0 as the next digit of our solution. 
Result so far: 12080.0
If we take 0 away from 472, we end up with 472.
Fetch the next digit (1) from the dividend, attach it to 472 and continue: 4721 / 581

Moving on to step 8:
581 goes into 4721 8 times with a remainder of 73.
Record the quotient 8 as the next digit in the result. 
Result so far: 120808.0
Deduct 4648 from 4721 and we're left with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

On to step 9:
When dividing 730 by 581, we get 1 with a remainder of 149.
Put 1 as the next digit of the answer. 
Result so far: 120808.1
Subtracting 581 from 730 leaves us with 149.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1490, and continue the process.

Step 10:
If we divide 1490 by 581, we get 2 and a remainder of 328.
The number 2 becomes the next digit in our result. 
Result so far: 120808.12
If we take 1162 away from 1490, we end up with 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

Going ahead to step 11:
If we divide 3280 by 581, we get 5 and a remainder of 375.
The number 5 becomes the next digit in our result. 
Result so far: 120808.125
The remainder is 375 after subtracting 2905 from 3280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Advancing to step 12:
The number 581 fits into 3750 6 times, leaving a remainder of 264.
Use 6 as the next digit of our solution. 
Result so far: 120808.1256
If we subtract 3486 from 3750, we get 264.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2640, and continue the process.

Moving on to step 13:
The number 581 fits into 2640 4 times, leaving a remainder of 316.
Write down 4 as next digit of the result. 
Result so far: 120808.12564
Subtract 2324 from 2640 to get 316.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

Moving on to step 14:
The number 581 fits into 3160 5 times, leaving a remainder of 255.
Put 5 as the next digit of the answer. 
Result so far: 120808.125645
Deduct 2905 from 3160 and we're left with 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

Step 15:
581 goes into 2550 4 times with a remainder of 226.
Put 4 as the next digit of the answer. 
Result so far: 120808.1256454
If we take 2324 away from 2550, we end up with 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

On to step 16:
581 goes into 2260 3 times with a remainder of 517.
Record the quotient 3 as the next digit in the result. 
Result so far: 120808.12564543
Subtracting 1743 from 2260 leaves us with 517.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5170, and continue the process.

After the division, we end up with 120808.12564543 and a remainder of 5.17e-07.